0 votes 0 votes Given, $i=\sqrt{-1}$, the value of the definite integral, $I= \int_0^{\pi/2} \dfrac{\cos x+ i \sin x}{\cos x – i \sin x} dx$ is: $1$ $-1$ $i$ $-i$ Calculus gate2015-ce-2 calculus definite-integral + – Milicevic3306 asked Mar 26, 2018 • retagged Mar 11, 2021 by Lakshman Bhaiya Milicevic3306 11.9k points answer See all 0 reply