$3y+y+y$

$\sqrt{\frac{\sqrt{3^x}}{3^x\sqrt{\left(3^x\right)}^3}}$

$\cot\left(x\right)=\frac{\sqrt{1+\sin^2\left(x\right)}}{\sin\left(x\right)}$

$\int y\left(a+by^2\right)^{-2}dx$

$\sec^{2}\frac{x}{2}=\frac{2\sec x}{1+\sec x}$

$2x^2-7x-10=0$

$\sin\left(x\right)\cdot\cos\left(x\right)+\frac{\tan\left(x\right)}{\sin\left(x\right)}$