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if 2x^2-3xy+y^2+x+2y-8=0 then (dy)/(dx)...

if `2x^2-3xy+y^2+x+2y-8=0` then `(dy)/(dx)`

A

`(3y - 4x -1)/(2y-3x + 2)`

B

`(3y + 4x + 1)/(2y + 3x + 2)`

C

`(3y - 4x + 1)/(2y - 3x - 2)`

D

`(3y - 4x + 1)/(2y + 3x + 2)`

Text Solution

Verified by Experts

The correct Answer is:
A
On differentiating given equation w.r.t.x, we get
`4x - 3x (dy)/(dx) - 3y + 2y (dy)/(dx) + 1 + 2 (dy)/(dx) - 0 = 0 `
`rArr (dy)/(dx) = (3y - 4x -1)/(2y - 3x + 1)`
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-DIFFERENTIATION -EXERCISE 1 (DERIVATIVE OF IMPLICIT FUNCTION)
  1. If y + sin y = cos x, then (dy)/(dx) is equal to

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  2. If sec^(-1) ((1 + x)/(1-y)) = a , " then " (dy)/(dx) is

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  3. if 2x^2-3xy+y^2+x+2y-8=0 then (dy)/(dx)

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  4. If x^(4) + y^(4) = 3xy, "then " (dy)/(dx) is equal to

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  5. If x = (y)/(sin y), then (dy)/(dx)

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  6. If y = x^(2). e^(xy) then derivative of y is

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  7. If xsqrt(1+y)+ysqrt(1+x)=0, for, -1<x<1,prove that (dy)/(dx)=-1/((1+x)...

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  8. यदि cosy=x cos(a+y), तथा cos a ne +-1, तो सिध्य कीजिये कि (dy)/(dx)=(c...

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  9. If 3 sin (xy) + 4 cos (xy) = 5 , " then " (dy)/(dx) is equal to

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  10. If sin^(2) x + cos^(2) y = 1 , " then " (dy)/(dx) is equal to

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  11. If sin(a+y)+sina.cos(a+y)=0. Prove that : (dy)/(dx)=(sin^2(a+y)/(sina...

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  12. Let y be an implicit function of x defined by x^(2x)-2x^xcot y-1=0. ...

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  13. If 2^x+2^y=2^(x+y), then (dy)/(dx) is equal to

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  14. If x^(2//3) + y^(2//3) = a^(2//3) , "then" (dy)/(dx) is equal to

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  15. If x=(1+logt)/(t^2),\ \ y=(3+2logt)/t ,\ \ find (dy)/(dx) .

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  16. If x=(1+logt)/(t^2),\ \ y=(3+2logt)/t ,\ \ find (dy)/(dx) .

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  17. If x=asec^3thetaa n dy=atan^3theta,fin d(dy)/(dx)a ttheta=pi/3dot

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  18. If x=a(cost+(logtan)1/2), y=asin t, then dy/dx is equal to

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  19. If x = t + (1)/(t) "and " y = t - (1)/(t) . "then" (dy)/(dx) is equa...

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  20. If x^2+y^2=(t+1/t) and x^4+y^4=t^2+1/t^2, then x^3y(dy)/(dx)=

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