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If [int0^1(dt)/(t^2+2tcosalpha+1)]x^2-[i...

If `[int_0^1(dt)/(t^2+2tcosalpha+1)]x^2-[int_- 3^3(t^2sin2t)/(t^2+1)dt]x-2=0 (0 < alpha < pi)` then the value of x is

A

(a)`pm(sqrt(alpha )/(2 sin alpha))`

B

(b)`pmsqrt((2 sin alpha )/(alpha))`

C

(c)`pmsqrt(( alpha)/( sin alpha))`

D

(d)`pm2sqrt((sin alpha)/(alpha))`

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The correct Answer is:
D
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ARIHANT MATHS-DEFINITE INTEGRAL-Exercise (Single Option Correct Type Questions)
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