Home
Class 12
MATHS
Prove that for any positive integer k ,...

Prove that for any positive integer `k ,(sin2k x)/(sinx)=2[cosx+cos3x++cos(2k-1)x]dot` Hence, prove that `int_0^(pi/2)sin2x kcotxdx=pi/2dot`

Promotional Banner

Topper's Solved these Questions

  • INTEGRAL CALCULUS - 2

    VMC MODULES ENGLISH|Exercise JEE Main (Archive)|64 Videos
  • FUNCTIONS

    VMC MODULES ENGLISH|Exercise JEE Main & Advanced|8 Videos
  • INTEGRAL CALCULUS-1

    VMC MODULES ENGLISH|Exercise JEE ADVANCED (ARCHIVE)|25 Videos

Similar Questions

Explore conceptually related problems

Prove that: int_0^(pi//2)(sin x)/(sinx-cosx)dx=pi/4

(sin 2 kx)/(sin x)=2[cos x + cos 3 x + …+cos (2k -1)x] , then value of I=int_(0)^(pi//2)(sin 2 k x)/(sin x)cos x dx is :

int _0^(pi/2) (sin^2x)/(sinx+cosx)dx

Prove that : int_0^(pi/2)sqrt(1-sin2x)dx=2(sqrt(2)-1)

Prove that : int_(0)^(pi) sin^(2m) x. cos^(2m+1) x dx=0

Prove that the value of : int_0^pi(sin(n+1/2)x)/sin(x/2)dx=pi

Evaluate: int_0^(pi/2) (sin2x)/(sin^4x+cos^4x)dx

Prove that int_0^(pi/2) \ sin^2 x / (1+sin x cos x) \ dx = pi/(3 sqrt(3)

Prove that : int_(0)^(pi//2) (sin x-cos x)/(1+sin x cos x)dx=0 " (ii) Prove that " : int_(0)^(pi//2) sin 2x. log (tan-x) dx=0

Prove that (sin5x-2sin3x+sinx)/(cos5x-cosx)=cosec2x-cot2x

VMC MODULES ENGLISH-INTEGRAL CALCULUS - 2 -JEE Advanced (Archive)
  1. A cubic function f(x) vanishes at x=-2 and has relative minimum/maximu...

    Text Solution

    |

  2. Evaluate: int0^pi(xsin2xsin(pi/2cosx)/(2x-pi)dx

    Text Solution

    |

  3. Prove that for any positive integer k ,(sin2k x)/(sinx)=2[cosx+cos3x+...

    Text Solution

    |

  4. If fa n dg are continuous function on [0,a] satisfying f(x)=f(a-x)a n ...

    Text Solution

    |

  5. The value of the integral overset(2a)underset(0)int (f(x))/(f(x)+f(2a-...

    Text Solution

    |

  6. int0^1log(sqrt(1-x)+sqrt(1+x))dx equals:

    Text Solution

    |

  7. Evaluate int(0)^(pi)(x dx)/(1+cos alpha sin x),where 0lt alpha lt pi.

    Text Solution

    |

  8. Evaluate : int0^(pi/2)(xsinxcosx)/(sin^4x+cos^4x)\ dx

    Text Solution

    |

  9. Evaluate: int0^(1/2)(xsin^(-1)x)/(sqrt(1-x^2))dx

    Text Solution

    |

  10. int(0)^(pi//4)(sin x + cos x)/(9+16 sin 2 x )

    Text Solution

    |

  11. Show that int(0)^(pi)xf(sinx)dx=(pi)/2 int(0)^(pi)"fr"(sinx)dx.

    Text Solution

    |

  12. Find the value of int(-1)^(3/2)|xsinpix|dx

    Text Solution

    |

  13. Evaluate int(0)^(1)(tx+1-x)^(n)dx, where n is a positive integer a...

    Text Solution

    |

  14. The value of int0^1 4x^3{(d^2)/(dx^2)(1-x^2)^5}dx is

    Text Solution

    |

  15. about to only mathematics

    Text Solution

    |

  16. Show that int0^(npi+v)|sinx|dx=2n+1-cosv , where n is a positive integ...

    Text Solution

    |

  17. Given a function f(x) such that It is integrable over every interval o...

    Text Solution

    |

  18. For any real number x ,l e t[x] denote the largest integer less than o...

    Text Solution

    |

  19. Let f:[0,2]vecR be a function which is continuous on [0,2] and is diff...

    Text Solution

    |

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

    Text Solution

    |