$\frac{\pi}{o}\int\sin\left(x\right)^4dx$

$\frac{32x^5+1024y^5}{2x+4y}$

$\frac{dy}{dx}sin\left(y\right)$

$\frac{x^3-125}{x^3-15x^{2\:}+75x-125}$

$\left(6x^5+2x^2\right)^2$

$\int\frac{\cos x}{1-\cos^2x}dx$

$\lim_{x\to\infty}\left(\left(\sqrt{x\left(4x+3\right)}-\sqrt{4x^{2}-5}\right)\right)$