$4+\sin^2\left(25\right)+\sin^2\left(65\right)$

$5^{3-x}=125$

$\lim_{x\to\infty}\left(\left(1+5x\right)^{\frac{1}{5ln\left(x\right)}}\right)$

$\left(+4\right)\cdot\left(-8\right)-\left(+5\right)\cdot\left(-8\right)-\left(+7\right)$

$\int x\:arc\:tan\:3x\:dx$

$\frac{d}{dx}y=\frac{2^x}{x+2}$

$\frac{dy}{dx}=\frac{\left(\left(2+x\right)^2\right)}{x^5}$