Home
Class 12
MATHS
If f(x) =(e^x)/(1+e^x), I1=int(f(-a))^(f...

If `f(x) =(e^x)/(1+e^x), I_1=int_(f(-a))^(f(a)) xg(x(1-x))dx`, and `I_2=int_(f(-a))^(f(a)) g(x(1-x))dx,` then the value of `(I_2)/(I_1)` is

A

`-1`

B

`-2`

C

`2`

D

`1`

Text Solution

AI Generated Solution

To solve the problem, we need to find the value of \( \frac{I_2}{I_1} \) where: - \( I_1 = \int_{f(-a)}^{f(a)} x g(x(1-x)) \, dx \) - \( I_2 = \int_{f(-a)}^{f(a)} g(x(1-x)) \, dx \) We start by analyzing the function \( f(x) \): 1. **Calculate \( f(a) \)**: ...
Promotional Banner

Topper's Solved these Questions

  • INEQUALITIES INVOLVING MEANS

    CENGAGE ENGLISH|Exercise Jee Advanced (Single|1 Videos
  • INTRODUCTION TO VECTORS

    CENGAGE ENGLISH|Exercise MATRIX-MATCH TYPE|3 Videos

Similar Questions

Explore conceptually related problems

Let f be a function defined by f(x)=4^x/(4^x+2) I_1=int_(f(1-a))^(f(a)) xf{x(1-x)}dx and I_2=int_(f(1-a))^(f(a)) f{x(1-x)}dx where 2a-1gt0 then I_1:I_2 is (A) 2 (B) k (C) 1/2 (D) 1

Let I_1=int_0^1e^(x^2)dx and I_2=int_0^(1)2x^(2)e^(x^2)dx then the value of I_1 +I_2 is equal to

If I_(1)=int_(3pi)^(0) f(cos^(2)x)dx and I_(2)=int_(pi)^(0) f(cos^(2)x) then

If I_(1)=int_(e)^(e^(2))(dx)/(lnx) and I_(2) = int_(1)^(2)(e^(x))/(x) dx_(1) then

If f(x)=1+1/x int_1^x f(t) dt, then the value of f(e^-1) is

For x epsilonR , and a continuous function f let I_(1)=int_(sin^(2)t)^(1+cos^(2)t)xf{x(2-x)}dx and I_(2)=int_(sin^(2)t)^(1+cos^(2)t)f{x(2-x)}dx . Then (I_(1))/(I_(2)) is

If int((x-1)/(x^2))e^x dx=f(x)e^x+c , then write the value of f(x) .

If 2f(x)+f(-x)=1/xsin(x-1/x) then the value of int_(1/e)^e f(x)d x is

If int((x-1)/(x^2))e^x\ dx=f(x)\ e^x+C , then write the value of f(x) .

If f'(x)=f(x)+ int_(0)^(1)f(x)dx , given f(0)=1 , then the value of f(log_(e)2) is

CENGAGE ENGLISH-INTEGRALS-All Questions
  1. int(-pi/3)^0[cot^(-1)(2/(2cosx-1))+cot^(-1)(cosx-1/2)]dx i s equal to...

    Text Solution

    |

  2. Ifint(-pi/4)^((3pi)/4)(e^(pi/4)dx)/((e^x+e^(pi/4))(sinx+cosx))=kint(-p...

    Text Solution

    |

  3. If f(x) =(e^x)/(1+e^x), I1=int(f(-a))^(f(a)) xg(x(1-x))dx, and I2=int(...

    Text Solution

    |

  4. If f(y)=e^y ,g(y) = y>0,a n d \ F(t)=int0^t f(t-y)g(y)dy ,then

    Text Solution

    |

  5. G i v e nint0^(pi/2)(dx)/(1+sinx+cosx)=log2. Then the value of integr...

    Text Solution

    |

  6. "I f"I1=int(-100)^(101)(dx)/((5+2x-2x^2)(1+e^(2-4x))) "and"I2=int(-10...

    Text Solution

    |

  7. int0^oo(x dx)/((1+x)(1+x^2)) is equal to (A) pi/4 (B) pi/2 (C) p...

    Text Solution

    |

  8. int0^oo(dx)/([x+sqrt(x^2+1)]^3)i se q u a lto 3/8 (b) 1/8 (c) -3/8 ...

    Text Solution

    |

  9. The value of int1^e (1+x^2 In x)/(x+x^2 In x) dx is equal (a) In (1+...

    Text Solution

    |

  10. The value of integral int0^(1/sqrt3) (dx)/((1+x^2)sqrt(1-x^2)) must be...

    Text Solution

    |

  11. Ifint0^oo(x^2dx)/((x^2+a^2)(x^2+b^2)(x^2+c^2)) =pi/(2(a+b)(b+c)(c+a...

    Text Solution

    |

  12. The value of the integral int0^1(dx)/(x^2+2xcosalpha+1) is equal to ...

    Text Solution

    |

  13. Determine a positive integer nlt=5 such that int0^1e^x(x-1)^n=16-6e

    Text Solution

    |

  14. Let f be a continuous function on [a ,b]dot Prove that there exists a ...

    Text Solution

    |

  15. If f(x)={(1-|x| ,, |x|lt=1),(0 ,, |x|>1):} and g(x)=f(x-1)+f(x+1), th...

    Text Solution

    |

  16. Evaluate: int0^(1)sin^(-1)((2x)/(1+x^2))dx

    Text Solution

    |

  17. Evaluate: int0^(pi/4)(tan^(-1)((2cos^2theta)/(2-sin2theta)))sec^2theta...

    Text Solution

    |

  18. L e t \ f(n)=1+1/2+1/3+...+1/n. Then show that f(n)=int0^(pi/2)cot(the...

    Text Solution

    |

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

    Text Solution

    |

  20. If f(x)=(sinx)/xAAx in (0,pi], prove that pi/2int0^(pi/2)f(x)f(pi/2-x)...

    Text Solution

    |