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int0^21/(1+tanx)dx is equal to (pi^)/...

`int_0^21/(1+tanx)dx` is equal to `(pi^)/4` (b) `(pi^)/3` (c) `(pi^)/2` (d) `pi`

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RD SHARMA ENGLISH-DEFINITE INTEGRALS-All Questions
  1. int0^(pi//2)(cosx)/((2+sinx)(1+sinx))dx equals (a)log(2/3) (b) l...

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  2. int0^pi(xtanx)/(secx+cosx)dxi s (a) (pi^2)/4 (b) (pi^2)/2 (c) (3pi^2...

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  3. int0^21/(1+tanx)dx is equal to (pi^)/4 (b) (pi^)/3 (c) (pi^)/...

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  4. int(-pi//2)^(pi//2)"sin"|x|dx is equal to (a) 1 (b) 2 (c) -1 (d)...

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  5. The value of the integral int0^oox/((1+x)(1+x^2))dx is (pi^)/2 (b) ...

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  6. int0^3(3x+1)/(x^2+9)dx = (pi^)/(12)+log(2sqrt(2)) (b) (pi^)/2+log(2...

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  7. I10=int0^(pi/2)x^(10)sinx dx then I10+90I8 is (A) 10(pi/2)^6 (B) 10(p...

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  8. The derivative of f(x)=int(x^2)^(x^3)1/((log)e t)dt ,(x >0), is 1/(...

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  9. Evaluate:int0^(pi//2)(cosx)/(1+cosx+sinx)dx

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  10. Evaluate: int0^(pi//2)1/(3+2cosx)dx

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  11. Evaluate: int(pi//4)^(pi//2)cos2xlogsinxdx

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  12. integrate int0^(2pi) sin (pi/4 + x/2) dx

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  13. Evaluate: int1^2 1/((x+1)(x+2))dx (ii) int1^2 1/(x(1+x^2))dx

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  14. Evaluate:(i) int0^(pi//6)(2+3x^2)dx

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  15. Evaluate: int0^4 1/(x+sqrt(x))dx (ii) int0^1(2x)/(5x^2+1)dx

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  16. Evaluate the following definite integrals (1-58): int1^2 1/(sqrt((x...

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  17. If (x) is of the form f(x)=a+b x+c x^2, show that int0^1f(x)d...

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  18. Evaluate: int0^oo1/((x^2+a^2)(x^2+b^2))dxdot

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  19. Evaluate the following integrals: int0^(pi//6)cos^(-3)2thetasin2th...

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  20. Evaluate the following integrals: int0^((pi)^(2//3))sqrt(x)cos^2x^(...

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