$\sqrt{45:9.3+1}$

$\left(x^2-10x+5\right)^2$

$\int\frac{6x+5}{\left(3x^2+5x+4\right)^7}dx$

$\frac{1}{2}\sec\left(x\right)\csc\left(x\right)$

$\:-2x\:+16=0$

$\int_1^{\infty}\left(\frac{sin\left(x\right)lnx}{x^3}\right)dx$

$\lim_{x\to\infty}3xsin\left(\frac{\pi}{x}\right)$