$$x^{\left(sin^2\left(x\right)cos\left(x\right)\right)}$$

$$-5x-y=9$$

$$\sin t=-\frac{8}{17}\:y\:$$

$$\int_1^x\left(\frac{1}{t}\right)dt$$

$$x^2-8x+9$$

$$-\int\frac{2+x}{x^2+5x+4}dx$$

$$\lim_{x\to0}\left(\frac{ln\left(x\right)}{x^2+1}\right)$$