Home
Class 12
MATHS
If cosy = xcos (a+y) with cos a ne pm1 ,...

If cosy = xcos (a+y) with `cos a ne pm1` , then `(dy)/(dx)` is equal to

A

`(sin a)/(cos^(2) (a+y))`

B

`(cos^(2)(a+y))/(sin a)`

C

`(cos a)/(sin^(2) (a+y))`

D

`(cos^(2)(a+y))/(cos a)`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • COMMON ENTRANCE TEST - 2017

    HIMALAYA PUBLICATION|Exercise QUESTION BANK|60 Videos

  • COMMON ENTRANCE TEST -2015

    HIMALAYA PUBLICATION|Exercise QUESTION BANK|60 Videos

Similar Questions

Explore conceptually related problems

If cosy=xcos(a+y)" with "cosa!= +-1 , then dy/dx is equal to

If cos y = x cos (a + y) with cos a != +- 1 . Prove that (dy)/(dx)=cos^2(x+a)/sina

If x^(y) = e^(x-y) then (dy)/(dx) is equal to

If y=sin^(n)x cos n x, then (dy)/(dx) is

If y=ce^(x//(x-a)) , then 1/y(dy)/(dx) is equal to :

If y = sqrt(sinx + y) then dy/dx is equal to

If y=tan^(-1)((sin x + cos x)/(cos x - sin x)) , then (dy)/(dx) is equal to

If y=x^(x^(2)), then (dy)/(dx) equals

If y = cos^(-1) ((2cos x - 3 sin x)/(sqrt(13))),then (dy)/(dx) is

HIMALAYA PUBLICATION-COMMON ENTRANCE TEST - 2018-QUESTION BANK
  1. Let A be a square matrix of order 3xx3 , then |5A| =

    Text Solution

    |

  2. If f(x)={{:(sqrt(1+kx)-sqrt(1-kx)," if ", -1le x lt 0),((2x+1)/(x-1), ...

    Text Solution

    |

  3. If cosy = xcos (a+y) with cos a ne pm1 , then (dy)/(dx) is equal to

    Text Solution

    |

  4. If f(x) = |cosx-sinx|, then f ' (pi//6) is equal to

    Text Solution

    |

  5. If y=sqrt(x+sqrt(x+sqrt(x+............oo))), m then dy/dx=

    Text Solution

    |

  6. If f(x)={{:((logex)/(x-1),,,x ne 1),(k,,,x=1):}is continuous at x = 1...

    Text Solution

    |

  7. Approximate change in the volume V of a cube of side x metres caused b...

    Text Solution

    |

  8. The maximum value of (1/x)^(x) is

    Text Solution

    |

  9. f(x)=x^(x) has a stationary point at :

    Text Solution

    |

  10. The maximum area of a rectangle inscribed in the circle (x+1)^(2)+(y-3...

    Text Solution

    |

  11. int1/(1+e^(x))dx is equal to

    Text Solution

    |

  12. int1/(sqrt(3-6x-9x^(2)))dx is equal to

    Text Solution

    |

  13. int" e"^(sinx).((sinx+1)/(secx))dx is equal to

    Text Solution

    |

  14. int(-2)^2 |x cos pi x|dx is equal to :

    Text Solution

    |

  15. int(0)^(1)(dx)/(e^(x)+e^(-x)) is equal to

    Text Solution

    |

  16. int0^(1//2)(dx)/((1+x^2)sqrt(1-x^2)) is equal to

    Text Solution

    |

  17. Area of the region bounded by the curve y = cos x, x = 0 and x = pi is

    Text Solution

    |

  18. The area bounded by the line y = x,x axis and ordinates x = -1 and x =...

    Text Solution

    |

  19. The degree and the order of the differential equation (d^(2)y)/(dx^(2)...

    Text Solution

    |

  20. The solution of the differential equation x(dy)/(dx)-y=3 represents a ...

    Text Solution

    |