$\lim_{x\to infinity}\left(\frac{e^x}{e^{3x}}\right)$
$\left(2x^2\right)^2+4x^4=8x^4$
$\:\frac{2+cot2\left(x\right)}{csc2\left(x\right)\:}-1$
$1-\cos\left(t\right)=\sqrt[3]{\sin\left(t\right)}$
$7x-2<3x-14$
$tan^22x=\frac{1}{3}$
$a\left(x^2+y^2+z^2\right)-x^2-y^2-z^2$
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