$\frac{b^7}{b^7}$

$\int\frac{\sin\left(\frac{1}{x^n}\right)}{x^{n+1}}dx$

$\frac{dy}{dx}-4y=x$

$\lim_{x\to\frac{x}{2}}\left(\frac{\sin\left(x+1\right)}{2}\right)$

$\sqrt{\left(\frac{1}{11}\right)^{-1}}$

$\left(3x+94\right)+\left(x+18\right)+\left(2x-4\right)$

$\left\{\frac{8}{5}+\pi\right\}$