$\sin t=-\frac{8}{17}\:y\:$

$3+m+n+4+n+2m$

$\int4\cos^3\left(7x\right)dx$

$2\cdot\frac{5}{2}$

$\left(\left(48-60\right)+\left(7-\left(-4\right)\right)-\left(-35-17\right)\right)$

$\int\frac{8x^2+8x+2}{\left(4x^2+1\right)^2}\:dx$

$\lim_{x\to\infty}\left(\frac{6^x-6}{x^2-1}\right)$