$$9x^2-12ab+46^2$$

$$\int\:\frac{e^x}{10e^x+7}dx$$

$$tan^2x\:-\:sec^2x\:+\:2$$

$$\cos\left(sin^{-1}x+cos^{-1}y\right)$$

$$-17200+-8930$$

$$\int\left(49+x^2\right)^7dx$$

$$\lim_{x\to3}\left(\frac{x-3}{x^2-4}\right)$$