Home
Class 12
MATHS
(d^2x)/(dy^2) equals: (1.) ((d^2y)/(...

`(d^2x)/(dy^2)` equals:
`(1.) ` `((d^2y)/(dx^2))^-1`
`(2)` `-((d^2y)/(dx^2)) ((dy)/(dx))^-3`
`(3)` `-((d^2y)/(dx^2))^-1 ((dy)/(dx))^-2`
`(4)` `-((d^2y)/(dx^2))^-1 ((dy)/(dx))^3`

A

`((d^(2)x)/(dy^(2)))^(-1)`

B

`((d^(2)x)/(dy^(2)))((dy)/(dx))^(-3)`

C

`((d^(2)x)/(dy^(2)))((dy)/(dx))^(-2)`

D

`-((d^(2)x)/(dy^(2)))((dy)/(dx))^(-3)`

Text Solution

Verified by Experts

The correct Answer is:
D

We have,
`(dx)/(dy)=((dy)/(dx))^(-1)`
`implies" "(d)/(dy)((dx)/(dy))=(d)/(dy){((dy)/(dx))^(-1)}`
`implies" "(d^(2)x)/(dy^(2))=(d)/(dx){((dy)/(dx))^(-1)}(dx)/(dy)`
`implies" "(d^(2)x)/(dy^(2))=-((dy)/(dx))^(-2)(d)/(dx)((dy)/(dx)).(dx)/(dy)`
`implies" "(d^(2)x)/(dy^(2))=-((dy)/(dx))^(-3)((d^(2)y)/(dx^(2)))`
Promotional Banner

Topper's Solved these Questions

  • DIFFERENTIATION

    OBJECTIVE RD SHARMA ENGLISH|Exercise Exercise|58 Videos
  • DIFFERENTIATION

    OBJECTIVE RD SHARMA ENGLISH|Exercise Chapter Test|30 Videos
  • DIFFERENTIATION

    OBJECTIVE RD SHARMA ENGLISH|Exercise Chapter Test|30 Videos
  • DIFFERENTIALS, ERRORS AND APPROXIMATIONS

    OBJECTIVE RD SHARMA ENGLISH|Exercise Exercise|17 Videos
  • ELLIPSE

    OBJECTIVE RD SHARMA ENGLISH|Exercise Chapter Test|29 Videos

Similar Questions

Explore conceptually related problems

(d^2x)/(dy^2) equals: (1) ((d^2y)/(dx^2))^-1 (2) -((d^2y)/(dx^2))^-1 ((dy)/(dx))^-3 (3) -((d^2y)/(dx^2))^-1 ((dy)/(dx))^-2 (4) -((d^2y)/(dx^2))^-1 ((dy)/(dx))^3

(d^2x)/(dy^2) equals: (1) ((d^2y)/(dx^2))^(-1) (2) -((d^2y)/(dx^2))^(-1)((dy)/(dx))^(-3) (3) ((d^2y)/(dx^2))^(-1)((dy)/(dx))^(-2) (4) -((d^2y)/(dx^2))^(-1)((dy)/(dx))^(-3)

Solve (d^2y)/(dx^2)=((dy)/(dx))^2

Solve (d^2y)/(dx^2)=((dy)/(dx))^2

If x=logp and y=1/p ,then (a) (d^2y)/(dx^2)-2p=0 (b) (d^2y)/(dx^2)+y=0 (c) (d^2y)/(dx^2)+(dy)/(dx)=0 (d) (d^2y)/(dx^2)-(dy)/(dx)=0

If y=xlog(x/(a+b x)),t h e nx^3(d^2y)/(dx^2)= (a) x(dy)/(dx)-y (b) (x(dy)/(dx)-y)^2 y(dy)/(dx)-x (d) (y(dy)/(dx)-x)^2

If e^y(x+1)=1 , show that (d^2y)/(dx^2)=((dy)/(dx))^2 .

If e^y(x+1)=1 , show that (d^2y)/(dx^2)=((dy)/(dx))^2 .

If e^y(x+1)=1 , show that (d^2y)/(dx^2)=((dy)/(dx))^2

If e^y(x+1)=1 . Show that (d^2y)/(dx^2)=((dy)/(dx))^2

OBJECTIVE RD SHARMA ENGLISH-DIFFERENTIATION-Section I - Solved Mcqs
  1. Let f(x)=3x^(2)+4xg'(1)+g''(2) and, g(x)=2x^(2)+3xf'(2)+f''(3)" for ...

    Text Solution

    |

  2. If f(x)=x^(n), then the value of f(1)-(f'(1))/(1!)+(f''(1))/(2!)-(f''...

    Text Solution

    |

  3. let f(x) be a polynomial function of second degree. If f(1)=f(-1)and a...

    Text Solution

    |

  4. Let f(x)=sqrt(x-1)+sqrt(x+24-10sqrt(x-1)), 1ltxlt26 be real valued fun...

    Text Solution

    |

  5. (d^2x)/(dy^2) equals: (1.) ((d^2y)/(dx^2))^-1 (2) -((d^2y)/(dx^2)...

    Text Solution

    |

  6. f(x) and g(x) are two differentiable functions in [0,2] such that f"(...

    Text Solution

    |

  7. If f(1) = 3, f' (1) = -1/3, then the derivative of {x^11 + f (x)}^-2 a...

    Text Solution

    |

  8. If y is a function of x and log(x+y)-2x y=0, then the value of y^(prim...

    Text Solution

    |

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

    Text Solution

    |

  10. If the functions f(x)=x^(3)+e^(x//2) " and " g(x)=f^(-1)(x), the value...

    Text Solution

    |

  11. Let g(x) = log f(x), where f(x) is a twice differentiable positive fun...

    Text Solution

    |

  12. Consider the function f:(-oo, oo) -> (-oo ,oo) defined by f(x) =(x^2...

    Text Solution

    |

  13. If f(x)=(x)/(1+|x|)" for "x inR, then f'(0)=

    Text Solution

    |

  14. If f(x)=(1)/(1-x), then the derivative of the composite function f[f{f...

    Text Solution

    |

  15. "Let "f(theta)=sin (tan^(-1)((sin theta)/(sqrt(cos 2theta))))," where ...

    Text Solution

    |

  16. if y^x-x^y=1 then the value of (dy)/(dx) at x=1 is

    Text Solution

    |

  17. "If "y=sec (tan^(-1)x)," then "(dy)/(dx)" at "x=1 is equal to

    Text Solution

    |

  18. Let y(x)=cos(3cos^-1x),x in [-1,1],x != +- sqrt3/2. Then 1/(y(x)){(x^2...

    Text Solution

    |

  19. If a curve is represented parametrically by the equation x = 4t^(3)+3 ...

    Text Solution

    |

  20. "If for "x in (0,(1)/(4))," the derivative of "tan^(-1)((6xsqrt(x))/(1...

    Text Solution

    |