$\left(\frac{1}{9}x^3-\frac{2}{7}y\right)^2$

$\sin\left(a\right)+\csc\left(a\right)^2\sin\left(a\right)^2+\cot\left(a\right)^2+3$

$\lim_{x\to1}\left(\frac{\ln\left(x-1\right)}{\cot\left(\pi x\right)}\right)$

$\frac{d}{dx}\left(\sqrt[4]{\frac{t}{6t+1}}\right)$

$5y-5y^2-5+2+2y+3y-1$

$\frac{dx}{dt}=3e^t-x$

$\:5\left(m+3+n\right)\:$