$\left(\frac{a^2b}{c^2}\right)^3$

$\frac{cosx+cos3x}{sinx-sin3x}=-cotx$

$-3\left(x\:-6\right)\:+\:9\left(-2\:x\:-5\right)$

$\frac{dy}{dx}=5y-4$

$\int\sin\left(x\right)e^{25x}dx$

$\frac{\sqrt{1-\left(cos\left(\theta\:\right)\right)^2}}{cos\left(\theta\:\right)}=tan\left(\theta\:\right)\:$

$4x\cdot\frac{2x}{3}$