$\int\left(\frac{30z^3+10z^2-5z-4}{5z}\right)dz$

$\sin\left(5x-23\right)\cdot\csc\left(2x+49\right)$

$sin\left(60\right)-cos\left(60\right)=cos\left(60\right)-sin\left(60\right)$

$6u^2w^2\left(3u^7w^4+4x^8\right)$

$\lim_{x\to\infty}\left(\frac{1}{ln}\right)$

$19x\left(x-1\right)-18x\left(x-2\right)=12\left(2x-1\right)$

$s\left(t\right)=12t-t^3$