$\int\frac{\sin\theta\cos^{2}\theta}{\sqrt{1+\cos\theta}}d\theta$

$\frac{dy}{dx}\sqrt{y}$

$-\left[3m+-m-\left(n-m+4\right)+-\left(m+\:n\right)+\left(-2n+3\right)\right]$

$\int\frac{1}{\left(\sqrt{x^2-24x+27}\right)}dx$

$x^2-30x+30$

$3-x>6$

$\frac{\left(9x^3+11x^2+2x\right)}{x^2+x-1}$