$\frac{dy}{d\theta\:}-3=\sin\left(3\theta\:\right);y\left(0\right)=\pi$

$\left(\:3x^{-2}\:+\:y^4\:\right)^2$

$\lim\:_{x\to\:\infty\:}\left(\frac{x^3+6x^2+1}{x^3+7x^2+x}\right)$

$\frac{3x+1}{4}-\frac{1}{3}\le\frac{2}{15}\left(3x+2\right)+\frac{4\left(1-x\right)}{3}$

$\frac{-3x+1}{x}=-x$

$2x^2+2x+x^2+2$

$3.26+5.22+42.1$