$dx=e^yx^2dy$
$x^2\:y-5xy^3$
$\frac{1-cos\left(x\right)}{csc\left(x\right)}=\frac{sin^3\left(x\right)}{1+cos\left(x\right)}$
$8+4\left(x+8\right)<10+x$
$\lim_{x\to0}\left(\frac{tan\left(x^2\right)}{sin\left(x\right)}\right)$
$3+2x+5x+1$
$\left(7x\:-\:a\right)^2$
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