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Mathematics
Problem
The integral
∫
π
/
4
3
π
/
4
d
x
1
+
cos
x
\int_{\pi/4}^{3\pi/4} \frac{dx}{1 + \cos x}
∫
π
/4
3
π
/4
1
+
c
o
s
x
d
x
is equal to [2017 JEE Main] a.
−
1
-1
−
1
b.
−
2
-2
−
2
c.
2
2
2
d.
4
4
4
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