UP Board Class 12 Maths Solution: Chapter 9 Differential Equations (अवकल समीकरण)

पोस्ट को शेयर करे!

दोस्तों स्वागत है आपका हमारी up board class 12 maths solution की एक और महत्वपूर्ण पोस्ट में ,जोकि आपके लिए वास्तव में बोहोत ही ज्यादा फायदेमंद होने वाली है क्यूंकि इस पूरी पोस्ट में जिन भी सवालो को जोड़ा गया है वे UP Board के हिसाब से सभी-के-सभी सवाल बोहोत ही ज्यादा महत्वपूर्ण है |

इस पोस्ट में UP Board की Class 12th Math की Chapter-9 Differential Equations (अवकल समीकरण) के सभी सवालो को उनके Solution(हल) सहित इस पोस्ट में जोड़ा गया है जिसमे Exercise(अभ्यास) 9.1 से Exercise(अभ्यास) 9.6 तक कुल 6 Exercise(अभ्यास) है जोकि बोहोत ही आसान है और जिनको आप बोहोत ही आसानी से समझ जायेंगे |

इन सभी Exercise(अभ्यास) को Solve(हल) करने के बाद में आपका बोहोत ही ज्यादा फायदा होगा इसलिए बिना किसी देरी के अभी से इन सभी Exercise(अभ्यास) को Solve(हल) करना start कर दीजिये जिससे की आप अपने Maths के exams में बोहोत ही आसानी से अच्छे और ज्यादा-से-ज्यादा नंबर बोहोत ही आसानी से प्राप्त कर सके |

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UP Board class 12 maths solution

CategoryEducation
LanguageHindi/English
Subject NameClass 12th Maths
Chapter NameChapter 9 Differential Equations (अवकल समीकरण)
Class 12 All Chapters SolutionClick Here
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Chapter 9 – Differential Equations (अवकल समीकरण)

up board 12 math solution

Exercise(अभ्यास) 9.1

Formula :-

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प्रश्न 1 – up board class 12 maths solution

Write the order and degree of the following differential equations .

निम्न अवकल समीकरणों की कोटि तथा घात लिखिये |

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प्रश्न 2 – differential equations class 12 solutions

At every point (x, y) of the curve, the slope of the tangent is equal to three times the sum of the abscissa and the cube of the ordinate. Find the differential equation.

वक्र के प्रत्येक बिन्दु (x,y) पर स्पर्शी की प्रवणता भुज तथा कोटि के घनो के योग के तीन गुने के बराबर है। अवकल समीकरण ज्ञात कीजिये।

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प्रश्न 3 – class 12 differential equations ncert solutions

Find the differential equation for all straight lines whose distance from the origin is 1.

उन सभी सरल रेखाओं, जिनकी मूलबिंदु से दुरी 1 है के लिये अवकल समीकरण ज्ञात कीजिये।

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प्रश्न 4 – class 12 maths differential equations

Find the differential equation of the circles that touch the y-axis at the origin.

उन वृतों का अवकल समीकरण ज्ञात कीजिये जो y-अक्ष को मूलबिंदु पर स्पर्श करते है।

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प्रश्न 5 – up board 12 math solution

Find the differential equation of all those parabolas whose vertices lie at the origin and foci lie on the y-axis.

उन सभी परवलयो का अवकल समीकरण ज्ञात कीजिये जिनका शीर्ष मूलबिंदु तथा नाभियाँ y-अक्ष पर स्थित है।

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प्रश्न 6 – up board class 12 maths solution

Find the differential equation of the ellipse x2a2 + y2b2 =1 when a and b are arbitrary constants.

दीर्घवृत्त x2a2 + y2b2 =1 का अवकल समीकरण ज्ञात कीजिये जबकि a तथा b स्वेच्छ अचर है।

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प्रश्न 7 – differential equations class 12 solutions

Prove that y= Ax + B is a solution of the differential equation d2ydx2 + 2x dydx = 0 .

सिद्ध कीजिये कि y= Ax + B अवकल समीकरण d2ydx2 + 2x dydx = 0 का हल है।

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8. Prove that y=Acosmx+Bsinmx is a solution of the differential equation d2ydx2 + m2y = 0 .

सिद्ध कीजिये कि y=Acosmx+Bsinmxअवकल समीकरण d2ydx2 + m2y = 0 का हल है।

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9. Find the differential equation of the former y=a+bx+cx2 .

पूर्वग y=a+bx+cx2 की अवकल समीकरण ज्ञात कीजिये।

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10. Find the differential equation of the equation xy=aex+be-x when a and b are arbitrary constants.

पूर्वग xy=aex+be-x  की अवकल समीकरण ज्ञात कीजिये जबकि a तथा b स्वेच्छ अचर है।

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प्रश्न 11 – up board class 12 maths solution

Find the differential equation of the equation x2+y2=a2 .

समीकरण x2+y2=a2 की अवकल समीकरण ज्ञात कीजिये।

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प्रश्न 12 – differential equations class 12 solutions

Find the differential equation of y=ex(Acosx+Bsinx).

y=ex(Acosx+Bsinx) की अवकल समीकरण ज्ञात कीजिये।

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13. Find the differential equation from y=Acosx2+Bsinx2 .

y=Acosx2+Bsinx2 से अवकल समीकरण ज्ञात कीजिये।

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Exercise(अभ्यास) 9.2

Note :-

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Solve the following differential equations(निम्न अवकल समीकरणों को हल कीजिये)-

1. dydx = ex

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2. dydx1x

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प्रश्न 3 – differential equations class 12 solutions

dydx = tanx

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4. dydx = cotx

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5. dydx =cosec2x + sec2x + cosx

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6. dydx = sec2x + 4x

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7. dydx = x2 + sin4x

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प्रश्न 8 – up board class 12 maths solution

dydx = x2 + x3 + 6x + 9

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9. dydx = sin8x.cosx

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10. (1+x2)dydx = x

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11. dydx + (1+x2)x = 0

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12. dydx = cosecx(3cosecx+4cotx)

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प्रश्न 13 – class 12 differential equations ncert solutions

dydx = cos(ax+b)

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Exercise(अभ्यास) 9.3

Formula :-

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Solve the following differential equations(निम्न अवकल समीकरणों को हल कीजिये)-

1. dydx = –yx

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2. dydx = 1(y+siny) 

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3. 3extany.dx+(1−ex)sec2y.dy = 0

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4. (ex+1)ydy+(y+1)dx = 0

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प्रश्न 5 – class 12 maths differential equations

(1+x2)dydx + (1+ y2) = 0

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6. dydx = e(x+y) + x2ey

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7. ysec2x  + (y+7)tanxdydx = 0

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8. dydx = (1+y2)(1+x2)

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9. dydx = sinxsiny

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प्रश्न 10 – up board class 12 maths solution

√(a+x)dydx + x= 0 यहाँ (√ = Full Root)

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11. dydx + (1+y2)y = 0

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12. (1+x)ydx+(1+y)xdy = 0

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13. (1+x2)dydx = 2x

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14. xdydx + y = y2

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प्रश्न 15 – differential equations class 12 solutions

dydx = x(2logx+1)(siny+ycosy)

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16. e(2x-3y)dx + e(2y-3x)dy = 0

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Exercise(अभ्यास) 9.4

Formula :-

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Solve the following differential equations(निम्न अवकल समीकरणों को हल कीजिये)-

1. d2ydx2 = 1

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2. d2ydx2 = sinx

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3. d2ydx2 = x7 

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प्रश्न 4 – class 12 differential equations ncert solutions

d2ydx2 = e4x

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5. d2ydx2 = xex+cosx

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6. d2ydx2 = cosx+x

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7. d2ydx2 =  x2 ex

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8. d2ydx2 = xsinx+ex

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प्रश्न 9 – class 12 maths differential equations

d2ydx2 = xsinx

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10. d2ydx2 = xcosx

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11. d2ydx2 = x+sinx , दिया है y = 0 , dydx = -1 यदि x = 0

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12. d2ydx2 = x2+sinx , दिया है x=0 पर y=0 , dydx = 1

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13. d2ydx2 +sin2x = (x2+1)e2x

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प्रश्न 14 – up board class 12 maths solution

d2ydx2 = cosx+e3x+x3 

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15. d2ydx2 = 1(1+x2) जबकि x = 0 पर y =0 तथा dydx = 0

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16. d2ydx2 + dydx  + x = 0

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Exercise(अभ्यास) 9.5

Formula :-

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Solve the following differential equations(निम्न अवकल समीकरणों को हल कीजिये)-

1. xdydx = x+y

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2. dydx = 2xy(x2-y2)

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प्रश्न 3 – differential equations class 12 solutions

dydx = (x+y)(x-y)

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4. x(x−y)dy+y2dx = 0

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5. (x-y)dydx = x+2y

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6. 2xydydx = (x2+y2

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7. x2(dydx) = x2+xy+y2

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प्रश्न 8 – class 12 differential equations ncert solutions

yexydx = (xexy+y)dy

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9. xdydx = y−xcos2 (yx)

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10. xdydx – y = 2√(y2-x2)

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11. (x3+3xy2)dx + (y3+3x2y)dy = 0

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12. xdydx = y(logy−logx+1)

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प्रश्न 13 – class 12 maths differential equations

(1+2exy)dx + 2exy(1−xy)dy = 0

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14. y2dx + (x2+xy+y2)dy = 0

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15. ydx + xlog(yx)dy − 2xdy = 0

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16. x2dy + y(x+y)dx = 0

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17. (x−√xy)dy = ydx

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प्रश्न 18 – up board class 12 maths solution

xdydx – y = xtan(yx)

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19.  [xsin2(yx) – y]dx + xdy = 0 , y(1) =  𝝅4

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20. (x2 – y2)dx +2xydy = 0 , y(1) = 1

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21. Prove that the family of curves for which the slope of the tangent at any point (x,y) is (x2+y2)2xy is given by x2 – y2 = cx .

सिद्ध कीजिए कि वक्रो का परिवार (Family of curves) जिसके लिए इसके किसी बिन्दु (x,y) पर स्पर्शी का ढाल  (x2+y2)2xy है,  x2 – y2 = cx द्वारा दिया जाता है।

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Exercise(अभ्यास) 9.6

Formula :-

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Solve the following differential equations(निम्न अवकल समीकरणों को हल कीजिये)-

1. 2xdydx +y = 6x3

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up board 12 math solution


प्रश्न 2 – differential equations class 12 solutions

(1-x2)dydx – xy = x

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3. dydx +ycotx = cosx

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4. xcosxdydx + y(xsinx+cosx) = 1

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up board 12 math solution


5. 4dydx +8y = 5e-3x

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6. xlogxdydx + y = 2logx

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प्रश्न 7 – class 12 differential equations ncert solutions

xdydx +2y = x2logx

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up board 12 math solution


8. dydx + y = sinx

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9. dydx + y = e-2x

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10. (1+x2)dydx + 2xy = 4x2

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up board 12 math solution

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11. (x2 – 1)dydx + 2xy = 2(x2-1)

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प्रश्न 12 – class 12 maths differential equations

xdydx + 2y =x2 , x≠0

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13. secxdydx = y + sinx

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14. dydx + y = ex

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15. dydx + yx = ex

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16. (1-x2)dydx + xy = ax

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प्रश्न 17 – up board class 12 maths solution

dydx− ytanx = exsecx

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18. dydx + ycotx = x

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19. (1+x2)dydx + 2xy = cosx

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20. dydx + ytanx = 2x + x2tanx

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up board 12 math solution


21. (x2-1)dydx + 2(x+2)y = 2(x+1)

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प्रश्न 22 – differential equations class 12 solutions

xdydx + 2y = sinx

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23. (1+x2)dy + 2xydx = cotxdx , x≠0

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24. (e-2√x√xy√x)dydx =1 , x≠0

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25. dydx + ycosx = sinxcosx

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26. xdydx + y − x + xycotx = 0 , x≠0

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प्रश्न 27 – class 12 differential equations ncert solutions

xdydx−y = x+1

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28. xdydx + 2y = xcosx

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29. dydx+ ycotx = 2x + x2cotx , जब y(0)=0

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30. dydx −2y = cos3x

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up board 12 math solution


31. xdydx = y(logy−logx−1)

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प्रश्न 32 – class 12 maths differential equations

(xlogx)dydx + y = (2x)logx

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33. dydx+ 2ycotx = 3x2cosec2x

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34. dydx +2y = sinx

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35. xdydx − y = 2x2secx

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36. dydx− 3ycotx = sin2x , जहाँ x= π2 पर y=2

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प्रश्न 37 – up board class 12 maths solution

ydydxsinx = cosx(sinx − y22) , y=1 जब x=π2

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38. dydx + ycotx = 4xcosecx , x=0 तथा x=π2 पर y=0

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39. (1+x2)dydx + 2xy = 1(1+x2) (दिया है y=0 जब x=1)

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40. (x+y)dydx = 1

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41. (x+2y2)dydx = y

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प्रश्न 42 – differential equations class 12 solutions

dydx + xy = xy3

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43. ydx + (x−y2)dy = 0 , y>0

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44. xdydx + y = y2logx`

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up board 12 math solution

45. tanydydx + tanx = cosycos2x

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UP Board 12 Math Solution Chapter 9 Differential Equations PDF

Up Board 12 Math Solution Chapter 9 Differential Equations PDF

दोस्तों मैंने इस up board class 12 maths solution की पोस्ट में जितने भी सवाल बताये है मैं उम्मीद करता हूँ की वे सभी सवाल आपको बोहोत ही आसानी से समझ में आगये होंगे और अब इस उन सभी सवालों हल करने के बाद में मै यह भी उम्मीद कर रहा हूँ की अब आप वे सभी सवाल भी बोहोत ही आसानी से हल कर लेंगे जो आपको पहले बोहोत ही ज्यादा कठिन लगते थे या बिल्कुल भी समझ में नहीं आते थे |

FAQ – UP Board Class 12 Maths Solution

Q: क्या इन सवालों को हल करके मै अच्छे नम्बर ला सकता हूँ?

Ans: हाँ ! अगर आप इन सभी सवालों को हल कर लेते है और इन सभी सवालों में जो भी concepts बताये गए है अगर साथ-ही-साथ आप उन सभी concepts भी अच्छे से समझते है तो आप बोहोत ही आसानी से अच्छे नम्बर ला सकते है |

Q: क्या इन सभी सवालों को आसानी से हल किया जा सकता है?

Ans: हाँ ! यह सभी सवालों बोहोत ही आसान है अगर आप इन्हें एक बार अच्छे से समझकर हल कर लेते है तो आपको इन्हें दोबारा हल करने में बिल्कुल भी कठिनाई नहीं होगी और आप इन्हें बोहोत ही आसानी से हल कर पाएंगे |

Q: यह सभी नोट्स किसके द्वारा लिखे गए है?

Ans: यह सभी नोट्स मेरे (शुभम पाल) द्वारा लिखे गए है जो की वास्तव में बोहोत ही बेहतरीन है क्यूंकि इन्ही के द्वारा मैंने Class 12th में बोहोत ही अच्छे नंबर प्राप्त किये थे |

Q: क्या यह सभी नोट्स फायदेमंद है

Ans: हाँ ! इसमें कोई शक नहीं है | यह नोट्स वास्तव में आपके लिए बोहोत ही ज्यादा फायदेमंद है क्यूंकि आप जब इन सभी सवालों को हल करेंगे तो इसका अंदाजा आपको अपनेआप ही होजायेगा की यह आपके लिए सच में कितने ज्यादा फायदेमंद है |

Q: क्या गणित (मैथ) विषय सच में बोहोत कठिन है?

Ans: हाँ और न ! क्यूंकि यह आप पर निर्भर करता है | अगर आप इसमें मेहनत करते है और गणित (मैथ) को ज्यादा से ज्यादा समय देते है तो यह आपके लिए बोहोत सरल है और अगर आप मेहनत कर रहे है फिर भी आपको यह कठिन लगता है तो ऐसे ही मेहनत करते रहिये आपको इसका अच्छा परिणाम जरुर प्राप्त होगा |

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