$\int\:e^{6x+1}dx$

$\lim_{x\to-1}\left(\frac{5x+4}{7x+6}\right)^{\frac{1}{2\left(x+1\right)}}$

$\cot^2\left(x\right)+\csc^2\left(x\right)=2\csc^2\left(x\right)-1$

$4x^2+23x+33=2x+8$

$\frac{\sin^2\left(x\right)+1}{\cos^2\left(x\right)}+1$

$128.321\cdot100$

$\ln\left(x^2-3\right)=\ln\left(6\right)$