JEE Main 2 April 2017 (offline), Maths Q75

Question 75 of 90 in this shift, Maths question 15 of 30.

The integral

\int_{\pi/4}^{3\pi/4}\frac{dx}{1+\cos x}

is equal to :

(1)2Official answer
(2)4
(3) $-1$
(4) $-2$

Official answer

Option 1

CBSE answer key (25/04/2017, used for result).

Chapter: Integrals
Topic: Integration by Substitution
Idea tested: Weierstrass Substitution

Same idea in other shifts

Asked 2× in all

29 Jul 2022, Shift 1 · Q6The integral $\int_0^{\pi/2} \frac{1}{3 + 2\sin x + \cos x}\, dx$ is equal to :HardSingle correct

Question text from the official JEE Main paper published by NTA (CBSE ran the 2017 exam); answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.