$\int\sec\left(x\right)\tan\:\left(x\right)dx$

$\int_1^3\left(4v\left(4u^2+1\right)^{\frac{1}{2}}\right)du$

$\lim_{x\to0}\left(\frac{3sin\left(x+h\right)-3sin\left(x\right)}{h}\right)$

$x^2-5x\le0$

$2\left(x-5\right)+3x$

$2a^2b+4ab^2+10a^3b^3$

$\int\left(x+1\right)\sin\left(2x-3\right)dx$