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Definite Integration question

2024 · 4 Apr · Shift 2 · Q46

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PYQ Library
JEE Main
Mathematics
Definite Integration
2024 · 4 Apr · Shift 2 · Q46

Definite Integration question

2024 · 4 Apr · Shift 2 · Q46

JEE MainMathematicsDefinite IntegrationMCQ+4 / −1

If the value of the integral

\int\limits_{-1}^1 \frac{\cos \alpha x}{1+3^x} d x

is

\frac{2}{\pi}

.Then, a value of

\alpha

is

A
$\frac{\pi}{2}$
B
$\frac{\pi}{4}$
C
$\frac{\pi}{3}$
D
$\frac{\pi}{6}$

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