Evaluate the integral: ∫ecos^2 x sin 2x dx – InterviewSolution

1.

Evaluate the integral: ∫ecos^2 x sin 2x dx

Answer»

Take cos² x = t

So we get

– sin 2x dx = dt

By integrating w.r.t. t

∫- e^t dt = – e^t + c

By substituting the value of t

= -e cos² x + c

Discussion

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