If d/dx[G(x) = etanx/x, x belongs to (0,pi/2), then ∫(2/x)etan( x2 )dx ( limit from 1/4 to 1/2) is equal to

a. G(1/(2)1/2) - G(1/2)

b. pi[G(1/2) - G(1/4)]

c. G(pi/4) - G(pi/16)

d. 2[G(pi/4) - G(pi/16)]

To all those who are having problem in above question
              find the solution given below useful, this is the easiest method to solve the given question

NOTE : The above question is solved keeping in mind that student know the basic property of Integration & derivative-antiderivative.

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