$7a^8-7a^4$

$\frac{\sin\left(t\right)+\tan\left(t\right)}{\tan\left(t\right)}$

$\int\left(\frac{1}{\left(\left(x^2+4x+5\right)^{0.5}\right)}\right)dx$

$\int\sin\left(x\right)^3cos^5xdx$

$\frac{3.26}{\cdot4.6}$

$\int\left(-4xe^{-4x^2}\right)dx$

$\int\left(3x^5-2\right)^{-5}\left(15x^4\right)dx$