Riemann Sums and Notation Practice Test

$\displaystyle \int_{0}^{1} x\cos(x),dx$

$\displaystyle \int_{0}^{2} x\cos(2x),dx$

$\displaystyle \int_{0}^{1} \left(\frac{x}{n}\right)\cos!\left(2\frac{x}{n}\right),dx$

$\displaystyle \int_{0}^{1} x\cos(2x),dx$

$\displaystyle \int_{0}^{1} nx\cos(2x),dx$