Home
Class 12
MATHS
Evaluate int(-(pi)/(2))^(pi/2) sin^(3)xc...

Evaluate `int_(-(pi)/(2))^(pi/2) sin^(3)xcos^(2)x(sinx+cosx)dx`.

Text Solution

Verified by Experts

Given integralGiven intergral `= underset(-(pi)/(2))overset(pi/2)intsin^(3)xcos^(2)xdx+underset(-(pi)/(2))overset(pi/2)int sin^(2)xcos^(3)xdx`
`= 0+2underset(0)overset(pi/2)intsin^(2)cos^(2)x dx` ( `:' sin^(3)xcos^(2)x` is odd and `sin^(2)x cos^(3)x` is even)
`= 2.(1.2)/(5.3.1) = 4/15`
Promotional Banner

Topper's Solved these Questions

  • DEFINITE INTEGRATION & ITS APPLICATION

    RESONANCE|Exercise Self practive problem|56 Videos
  • DEFINITE INTEGRATION & ITS APPLICATION

    RESONANCE|Exercise Exercise 1|31 Videos
  • COMBINATORICS

    RESONANCE|Exercise Exercise-2 (Part-II: Previously Asked Question of RMO)|8 Videos
  • DPP

    RESONANCE|Exercise QUESTION|665 Videos

Similar Questions

Explore conceptually related problems

int_(-pi//2)^(pi//2) sin^(2)x cos^(2) x(sin xcos x)dx=

int_(-pi//2)^(pi//2)(sin^(2)x.cos^(2)x(sin x+cos x))dx=

Evaluate: int_(-pi//2)^(pi//2)sin^2x\ dx

Evaluate : int_((pi)/(6))^((pi)/(3)) sin^(2) x dx

int_(pi/3)^(pi/2) sinx dx

int_(-pi)^(pi)sin^(2)x.cos^(2)x dx=

int_(0)^((pi)/2)(cos^(3)x)/(sinx+cosx)dx

Evaluate int_(pi/3)^(pi/2) e^x((1+sinx)/(1+cosx))dx

int_(0)^(pi//2)sin^(4)xcos^(5)x dx=

RESONANCE-DEFINITE INTEGRATION & ITS APPLICATION -High Level Problem
  1. Evaluate int(-(pi)/(2))^(pi/2) sin^(3)xcos^(2)x(sinx+cosx)dx.

    Text Solution

    |

  2. Find the integral value of a for which int(0)^(pi//2)(sinx+acosx)^(3) ...

    Text Solution

    |

  3. Evaluate int(0)^(pi)sqrt((cosx+cos2x+cos3x)^(2)+(sinx+sin2x+sin3x)^(...

    Text Solution

    |

  4. Let alpha & beta be distinct positive roots of the equation tanx = 2x,...

    Text Solution

    |

  5. Evaluate : lim(ararr(pi/2)^(-)) int(0)^(a)(cosx)ln(cosx)dx

    Text Solution

    |

  6. Find the value of a(0 lt a lt 1) for which the following definite inte...

    Text Solution

    |

  7. Find the Lim(nrarroo) ((""^(3n)C(n))/(""^(2n)C(n)))^(1/n) Where ""^(...

    Text Solution

    |

  8. int0^oof(a/x+x/a)*(lnx)/x d x=lna*int(a/x+x/a)*(dx)/x

    Text Solution

    |

  9. Evaluate Lim(n->oo)n^2 int(-1/n)^(1/n) (2006sinx+2007cosx) |x|dx

    Text Solution

    |

  10. Let sequence (a(n)) be defined as a(1) = pi/4, a(n) = int(0)^(1//...

    Text Solution

    |

  11. Find f(x) if it satisfies the relation f(x) = e^(x) + int(0)^(1) (x...

    Text Solution

    |

  12. Evaluate : int(-1//sqrt(3))^(1//sqrt(3))(x^(4))/(1-x^(4)) cos^(-1) ((2...

    Text Solution

    |

  13. Evaluate int(0)^(1)(1)/((5+2x-2x^(2))(1+e^((2-4x)))dx

    Text Solution

    |

  14. Prove that for any positive integer k , (sin2kx)/(sinx) = 2 [cosx+co...

    Text Solution

    |

  15. If n gt 1. Evaluate int(0)^(oo)(dx)/((x+sqrt(1+x^(2)))^(n))

    Text Solution

    |

  16. Let f(x) be a continuous function AAx in R , except at x=0, such that...

    Text Solution

    |

  17. Given that lim(nrarroo) sum(r=1)^(n) (log(e)(n^(2)+r^(2))-2log(e)n)/n ...

    Text Solution

    |

  18. For a natural the following questions : Now answer the following que...

    Text Solution

    |

  19. Given that lim(x to oo)(int(0)^(x)(t^(2))/(sqrt(a+t))dt)/(bx-sinx) = 1...

    Text Solution

    |

  20. Draw a graph of the function f(x) = cos^(-1) (4x^(3)-3x), x in [-1,1] ...

    Text Solution

    |

  21. Consider a square with vertices at (1,1),(-1,1),(-1,-1),a n d(1,-1)dot...

    Text Solution

    |