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int0^oo(x dx)/((1+x)(1+x^2)) is equal to...

`int_0^oo(x dx)/((1+x)(1+x^2))` is equal to (A) `pi/4` (B) `pi/2` (C) `pi` (D) none of these"

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CENGAGE PUBLICATION-INTEGRALS-All Questions
  1. Given int0^(pi/2)(dx)/(1+sinx+cosx)=log2. Then the value of integral ...

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

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

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  4. int0^oo(dx)/([x+sqrt(x^2+1)]^3)is equal to (a)3/8 (b) 1/8 (c) -3/8 ...

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

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

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

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

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  9. The natural number nle5 for which In=int0^1 e^x(x-1)^n dx=16-6e is

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

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

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

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

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

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

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

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  17. Determine a positive integer n such that int0^(pi/2)x^nsinx dx=3/4(pi^...

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  18. f,g,h are continuous in [0,a],f(a-x)=f(x),g(a-x)=-g(x),3h(x)-4h(a-x)=5...

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  19. If f(x+f(y))=f(x)+yAAx ,y in R and f(0)=1, then prove that int0^2f(2-...

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  20. Let intx^(x+p)f(t)dt be independent of xa n dI1=int0^pf(t)dt ,I2=int(1...

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