$\int\frac{\sqrt{x^2+49}}{7x^2}dx$

$\int\left(\frac{-x^4-\sqrt[3]{x}}{x}\right)dx$

$\int\sqrt{5+y\left(2+y\right)}dy$

$ln\left(y-9\right)-ln\left(2\right)=x+ln\left(x\right)$

$\csc\left(y\right)dx+\sec\left(x\right)dy$

$\frac{d^3y}{dx^3}\left(y=\left(3x+5\right)^5\right)$

$\sqrt{x^6\cdot y^8}$