$\int\left(\frac{e^{x-5}-e^{3+x}}{e^{1-x}}\right)dx$

$\int_0^{\pi}\left(\tan\left(3x\right)\right)dx$

$\lim_{x\to\infty}\left(ln\left(x\right)\right)^{\frac{3}{x}}$

$\int\:\frac{x^2-6x+9}{\sqrt{x^2-6x+18}}dx$

$25x^2+60+100$

$\frac{\left(e^x+y+\frac{\left(e^x\right)}{y}\right)}{\frac{\left(e^x\right)}{y}}$

$-13\left(2\right)+\left(-40\right)$