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int(0)^((pi)/(2))(dx)/(2cosx+4sinx)=(1)/...

`int_(0)^((pi)/(2))(dx)/(2cosx+4sinx)=(1)/(sqrt(5))log((3+sqrt(5))/(2))`

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int_(0)^((pi)/(2))(dx)/(2+cosx)=(pi)/(3sqrt(3))

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int_(0)^((pi)/(2))(dx)/(4+5cosx)=(1)/(3)log2

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

int_(0)^((pi)/(2))(sinxdx)/((2-cosx)(3+cosx))=(1)/(5)log.(8)/(3)

int_(0)^((pi)/(2))(cosx-sinx)/(1+sinxcosx)dx

int_(0)^((pi)/(2))(cosxdx)/((1+sinx)(2+sinx)(3+sinx))=(1)/(2)log.(32)/(27)

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CHHAYA PUBLICATION-DEFINITE INTEGRAL -LONG ANSWER TYPE QUESTIONS
  1. int(7)^(23)(dx)/((x-2)sqrt(x+2))=(1)/(2)log.(15)/(7)

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  2. int(0)^((pi)/(2))(dx)/(4+5cosx)=(1)/(3)log2

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  3. int(0)^((pi)/(2))(dx)/(2cosx+4sinx)=(1)/(sqrt(5))log((3+sqrt(5))/(2))

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  4. int(0)^((pi)/(2))(dx)/(a+bcosx)(agtb)=(2)/(sqrt(a^(2)-b^(2)))tan^(-1)s...

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  5. int((pi)/(6))^((pi)/(3))(dx)/(sin^(4)xcos^(2)x)=(80sqrt(3))/(27)

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  6. int(a)^(b)(logx)/(x)dx=(1)/(2)log(ab)log((b)/(a))

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  7. int(0)^(1)x.sqrt((1-x^(2))/(1+x^(2)))dx=(pi-2)/(4)

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  8. int(1)^(2)(dx)/((x+1)sqrt(x^(2)-1))=(1)/(sqrt(3))

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  9. int(0)^((3pi)/(4))(sinxdx)/(1+cos^(2)x)=(pi)/(4)+tan^(-1)((1)/(sqrt(2)...

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  10. int(0)^((pi)/(2))sin 2x tan^(-1)(sinx)dx

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  11. int(0)^((pi)/(4))xcosxcos3xdx=(pi+2)/(16)

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  12. If f(x) is periodic function of period t show that int(a)^(a+t)f(x)dx ...

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  13. If y=int(0)^(x)(t-1)(t-2)^(2)dt, find x for which (dy)/(dx)=0.

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  14. If int(0)^(y)e^(t)dt+int(0)^(x)cost^(2)dt=0 show that, e^(y)(dy)/(dx)+...

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  15. lim(n to oo)(1^(9)+2^(9)+3^(9)+...+n^(9))/(n^(10))

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  16. lim(nrarroo) [(1)/(n+1)+(1)/(n+2)+(1)/(n+3)+...+(1)/(n+n)]

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  17. lim(nrarroo) [(1)/(n)+(n^(2))/((n+1)^(3))+(n^(2))/((n+2)^(3))+...+(1)/...

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  18. lim(nrarroo)[(n)/(n^(2)+1^(2))+(n)/(n^(2)+2^(2))+(n)/(n^(2)+3^(2))+......

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  19. lim(nrarroo) [(1^(2))/(n^(3)+1^(3))+(2^(2))/(n^(3)+2^(3))+(3^(2))/(n^(...

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  20. lim(nrarroo)[(n+1)/(n^(2)+1^(2))+(n+2)/(n^(2)+2^(2))+(n+3)/(n^(2)+3^(2...

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