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The value of int(1/e)^(tanx)(tdt)/(1+t^2...

The value of `int_(1/e)^(tanx)(tdt)/(1+t^2)+int_(1/e)^(cotx)(dt)/(t(1+t^2)),` where `x in (pi/6,pi/3)` , is equal to: (a)0 (b) 2 (c) 1 (d) none of these

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