$$\sqrt{121w^4}$$

$$\left(4x+3y+2\right)-\left(6x-5\right)$$

$$\lim_{x\to-\infty}\left(\frac{ln\left(x^4+5\right)}{13x+5}\right)$$

$$2sinx+1=cscx$$

$$\frac{1-\sin^2x}{1+cot^2x}$$

$$x^2-26x-13$$

$$1+yx+x^2\frac{dy}{dx}$$