$w=\sqrt{x^2+y^2}\:\:$
$4x+56\ge104$
$\frac{3\cdot sin\left(x\right)sec\left(x\right)}{tan\left(x\right)}$
$\int\left(x^2+1\right)\left(5x^3+x\right)dx$
$-4\cos^2x+8\sin^2x=0$
$\left(-b^7+6n^2\right)\left(b^7+6n^2\right)$
$\lim_{x\to0}x\cdot ln2x$
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