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Evaluate underset(0)overset(a)int (dx)/(...

Evaluate `underset(0)overset(a)int (dx)/(x^(2)+a^(2))`

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The correct Answer is:
`(pi)/(4a)`
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AAKASH SERIES-DEFINITE INTEGRALS-Exercise (Level-2)
  1. Evaluate underset(0)overset(a)int (dx)/(x^(2)+a^(2))

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  2. Evaluate int(2)^(3)(2x^(5)+x^(4)-2x^(3)+2x^(2)+1)/((x^(2)+1)(x^(4)-1))...

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  3. Show that int(0)^(pi//4)(x^(2))/((x sin x + cos x)^(2))dx - (4-pi)/(4+...

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  4. Show that int(1)^(2)(x+(1)/(x))^(3//2)((x^(2)-1)/(x^(2)))dx = ((5)/(2)...

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  5. Show that int(2)^(2sqrt(3)) x^(3)(x^(2)-3)^(3//2)dx = (16012)/(35)

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  6. Prove that int(0)^(oo) (dx)/((x^(2)+a^(2))(x^(2)+b^(2)))=(pi)/(2ab(a+b...

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  7. Prove that int(a)^(oo) (dx)/(x^(4)sqrt(a^(2) + x^(2)))=(2-sqrt(2))/(3a...

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  8. Prove that int(0)^(pi//2) "cosec" (x-(pi)/(3))"cosec"(x-(pi)/(6)) dx =...

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  9. Show that int(0)^(oo) (dx)/([x+sqrt(x^(2)+1)]^(3)) = (3)/(8)

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  10. Show that int(0)^(pi)cos (2 cot^(-1) (sqrt((1-x)/(1+x))))dx = -(1)/(2)

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  11. Show that int(0)^(pi//2) (dx)/(3+4 six) = (1)/(sqrt(7)) log((4+sqrt(7)...

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  12. If int(log 2)^(x) (dy)/(sqrt(e^(y) -1)) = (pi)/(6), prove that x = log...

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  13. If int(log 2)^(x)(1)/(e^(x)-1)dx = log""(3)/(2), show that x = log 4

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  14. Show that int(0)^(1//2)(x sin^(-1)x)/(sqrt(1-x^(2)))dx = (1)/(2)-(sqrt...

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  15. Prove that int(0)^(pi//2) tan^(-1)(sin x) .sin 2x = (pi)/(2)-1

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  16. Show that (a) int(e)^(e^(2))(1)/(log x)dx = int(1)^(2)(e^(x))/(x)dx ...

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  17. Prove that int(0)^(1) log(sqrt(1-x)+sqrt(1+x))dx = (1)/(2) log 2 + (pi...

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  18. Show that int(0)^(pi//4) x cos x cos 3 x dx = (pi-3)/(16)

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  19. Prove that int(0)^(oo) e^(-2x)(sin 2x + cos 2 x) dx = (1)/(2)

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  20. Show that int(0)^(pi//2) (cos x)/((1+sin x)(2+sin x)) dx = log((4)/(3...

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  21. Show that int(1)^(7thsqrt(2))(1)/(x(2x^(7) + 1))dx=(1)/(7) log((6)/(5)...

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