$\sin\left(x\right)\left(\tan\left(x\right)+\cot\left(x\right)\right)=\cos\left(x\right)$

$x^2-3x-10>\:0$

$\lim_{x\to\infty}\left(1\:+\:\frac{25}{x}\right)^x$

$\ln\left(\frac{x}{\sqrt{x^2+2}}\right)$

$6.4+6.3+6.4+6.7+6.8+6.8+6.9+6.9+6.9+6.9+6.9+7.0+7.3+7.5+7.8+7.8+7.8+7.9+7.9+8.1+8.3$

$\left(-7b\:+\:8c\right)\:-\:\left(12a\:+\:14\right)\:+\:\left(5a\:+\:5b\right)$

$\left(6n^3+\frac{4}{3}p\right)^2$