$sin233cos113-cos233sin113$
$\left(1-cos\theta\:\right)\left(1+sec\theta\:\right)=sec\theta\:-cos\theta\:$
$36x^4-49$
$9a^2-121c^2$
$\frac{dy}{dx}=2+9x+12y+54xy$
$\left(f-a\right)\left(f+8\right)$
$m^2+11m-12$
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