$\frac{dy}{dx}=sen\left(x-y\right)+sen\left(x+y\right)$

$\cos a+\sin a\cdot\tan a=\sec a$

$y'\:=\:e^{-sin\left(x\right)}-y\cdot\:\:cos\left(x\right)$

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

$64=96-j$

$\int x^5\left(7+x^2\right)^{\frac{1}{2}}dx$

$\left(18\:\cdot2125\right)\:+\:\left(24\:\cdot2000\right)$