Riemann Sums and Notation Practice Test

$\displaystyle \int_{1}^{2} \frac{1}{1+x^2},dx$

$\displaystyle \int_{1}^{2} \frac{1}{1+(1+0.1x)^2},dx$

$\displaystyle \int_{1}^{1.9} \frac{1}{1+x^2},dx$

$\displaystyle \int_{0}^{9} \frac{1}{1+(1+0.1x)^2},dx$

$\displaystyle \int_{0}^{1} \frac{1}{1+x^2},dx$