Evaluate the integral: ∫etan x sec2 x dx – InterviewSolution

1.

Evaluate the integral: ∫etan x sec2 x dx

Answer»

Take tan x = t

So we get

sec² x dx = dt

By integrating w.r.t. t

∫e^t dt = e^t + c

By substituting the value of t

= e^{tan x} + c

Discussion

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