$\frac{1}{2}\cos\left(2x\right)+\sin^2x$
$\sin\left(x\right)\frac{\left(\csc\left(x\right)-\sin\left(x\right)\right)}{\tan\left(x\right)}$
$2ax^2+3bx^3$
$4a^2-8a+16$
$m3\:+\:1000$
$x^2-4<4-2x$
$2bc\left(a+b+c\right)$
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