$\frac{da}{dt}=-10a+80t$
$2x^2-6x-36$
$\left(\sec\left(x\right)+\tan\left(x\right)\right)\left(\csc\left(x\right)-1\right)=\cot\left(x\right)$
$\frac{d}{dx}\:3x^2-5x+1$
$-0.25x^2+2x+11$
$\cos\left(\frac{3}{5}-\frac{7}{25}\right)$
$100x^4-60x^2b+9b^2$
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