$\lim_{t\to\pi}\left(\frac{csct}{csc3t}\right)$

$0=x^3\left(x^2-10x+25\right)$

$a\left(3x-10\right)=21x-2b$

$9x^3\:-16xy^6$

$\lim_{x\to10}5$

$2\left(-\frac{7}{2}\right)^5-\left(-\frac{7}{2}\right)^4-36\left(-\frac{7}{2}\right)^3-36\left(-\frac{7}{2}\right)^2-38\left(-\frac{7}{2}\right)-35$

$5sin\left(x+53.13^{\circ\:}\right)=1$