$\frac{1}{4}\sin\left(x\right)+1=0$

$\left(13+\sqrt{69}\right)\left(13-\sqrt{69}\right)$

$753+27+395$

$\lim_{x\to\infty}\left(1+\frac{1}{x}\right)^{4x}$

$4x^2-18x+20.25$

$\int\frac{\left(x\right)}{\sqrt{1-2x^2}}dx$

$\lim_{x\to0}\left(\frac{\left(4^x-1\right)}{\left(7^x-1\right)}\right)$