$$\lim_{x\to0}\left(x^{tan2x}\right)$$

$$\left(x^3+4y\right)\left(x^3+2y\right)$$

$$\int sec^2\left(3x\right)cos\left(3x\right)dx$$

$$m=3,n=2$$

$$\frac{d^3}{dx^3}\left(\frac{5}{12}-\frac{1}{6}x^6-\frac{1}{2}x^4\right)$$

$$-2\left(3\right)+2$$

$$2x^2-8x+6$$