$\left(m^4n-3.5\right)^2$

$\int\left(t^2+3t+4\right)\cdot\cos\left(2t\right)dt$

$\frac{1+tan^2\left(x\right)}{tan\left(x\right)}=sec\left(x\right)csc\left(x\right)$

$\int\left(7x^2+2x^5\right)dx$

$2x^2y^2+x^2+y^2-5,\:x=0,\:y=1$

$\lim_{x\to0}\left(\frac{e^x-e^{-x}}{4x^4-3x^3+2x^2}\right)$

$-\left(-7v+\:6\right)$