The area between \(x-\) axis and curve \(y=\cos x\), where \(0\leq x\leq 2\pi\) is

\(0\) \(2\) \(3\) \(4\)

\(4\)

\(\begin{aligned}\text{Area}&=\int_{0}^{2\pi}\cos xdx\\ &=4\int_{0}^{\frac{\pi}{2}}\cos xdx\\ &=4\end{aligned}\)