$$\frac{tan^2\left(\frac{x}{2}\right)+1}{4\sin\left(x\right)\cdot\csc\left(2x\right)}$$

$$12x^4y^2-63$$

$$\frac{-5^2+10^2}{\left(2\cdot\left(-5\right)\cdot3\right)+3^3}$$

$$\left(3m^2+5n^5\right)^3$$

$$\frac{dy}{dx}=\frac{y}{2xlnx}$$

$$10+6y=16$$

$$x^2-6x=-9$$