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Slippery integral

Calculus Level 4

$f(x) = e^{\cos {x}}\cos {(\sin {x})}$

Find the area bounded by $f(x)$ and the $x$ -axis between $x=0$ and $x=2\pi$ .

\pi/2

2\pi

\pi

None of the other options

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by Raghav Vaidyanathan

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