$log\left(2x-7\right)-log\left(x-1\right)=log5$

$\csc\left(1\right)\arcsec\left(2\right)\arccosh\left(4\right)e$

$\frac{64x^2+192x^2+192x+64}{6x^2-5x-21}$

$\frac{1}{\tan\left(x\right)\csc\left(x\right)}=\cos\left(x\right)$

$6\tan^2\left(x\right)+7\tan\left(x\right)+2$

$\left(5y^{n+1}-m^{n+3}\right)^2$

$\int\left(21x^2\right)dx$