$\int\left(\frac{5}{x\sqrt{25-ln^2\left(x\right)}}\right)dx$

$2y^2+4y+4$

$\int\left(t^6-6\right)^2dt$

$\frac{\cos\left(x\right)-\cos^3\left(x\right)}{\sec^2\left(x\right)-1}$

$\sin\left(\frac{\pi}{2}\right)x$

$\frac{1}{\left(2-x\right)\left(4+x\right)^2}$

$\left(\frac{5}{m}\right)^2$