jee-main 2015 Q70

jee-main · India · 10apr Indefinite & Definite Integrals Definite Integral Evaluation (Computational)

The integral $\int_{\pi/4}^{3\pi/4} \frac{dx}{1 + \cos x}$ is equal to:
(1) $-1$
(2) $-2$
(3) $2$
(4) $4$

The integral $\int_{\pi/4}^{3\pi/4} \frac{dx}{1 + \cos x}$ is equal to:\\
(1) $-1$\\
(2) $-2$\\
(3) $2$\\
(4) $4$