$5x-4\le3x+4$

$\frac{\sin\:^2\left(\theta\:\right)+\left(1+\cos\:\left(\theta\:\right)\right)^2}{\sin\:\left(\theta\:\right)\left(\cos\:\left(\theta\:\right)+1\right)}$

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

$\lim_{x\to0}\left(\frac{1-\cos\left(\sqrt{t}\right)}{\sqrt{t}}\right)$

$-4+17+8+7$

$\frac{y}{x^3}=1$

$\frac{\sec\left(x\right)-\cos\left(x\right)}{\sin^2x\sec^2x}$