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If a curve `y=f(x)` passes through the point `(1,-1)` and satisfies the differential equation `,y(1+x y)dx""=x""dy` , then `f(-1/2)` is equal to: (1) `-2/5` (2) `-4/5` (3) `2/5` (4) `4/5`

A

`2/5`

B

`4/5`

C

`-(2)/(5)`

D

`-(4)/(5)`

Text Solution

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The correct Answer is:
B
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DISHA PUBLICATION-DIFFERENTIAL EQUATIONS -Exercise-2 : Concept Applicator
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  3. Tangent to a curve intercepts the y-axis at a point Pdot A line ...

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  4. The differential equation of family of curves whose tangent form an an...

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  5. If the solution of the differential equation y( 1 + 2 xy sec^(2) (x^(2...

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  6. A ray of light coming from origin after reflectiion at the point P (x ...

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  7. The differential equation of the family of circles with fixed radius 5...

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  8. If y=(x+sqrt(1+x^2))^n then (1+x^2)(d^2y)/(dx^2)+x(dy)/(dx)

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  9. The solution of differential equation x y^(prime)=x((y^2)/(x^2)+(f((y^...

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  10. The solution of the differential equation (dy)/(dx)=(1-3y-3x)/(1+x+y) ...

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  11. The solution of the equation (dy)/(dx)=((y^(2) -y-2))/(x^(2) + 2x+3) i...

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  12. The solution of differential equation (dy)/(dx) = e^(x-y) + x^(2)e^(-y...

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  13. Let f be a non-negative function defined on the interval [0,1]. If int...

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  14. Solution of the differential equation (1+e^(x/y))dx + e^(x/y)(1-x/y)dy...

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  15. In a culture, the bacteria count is 1,00,000. The number is increas...

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  16. The solution of the differential equation (dy)/(dx)=(4x+y+1)^(2), is

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  17. The solution of the differential equation x^(3)(dy)/(dx)+4x^(2) tany=e...

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  18. Solution of the differential equation ((x+y-1)/(x+y-2))(dy)/(dx)=((x+y...

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  19. Solve (1+e^((x)/(y)))dx + e^((x)/(y)) (1-(x)/(y))dy = 0

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  20. The function f(x) satisfying the equation f^2 (x) + 4 f'(x) f(x) + (...

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  21. v34

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