$4x+7y=123$
$100c^2\:-\:36$
$\frac{\cos\:^2\left(x\right)\left(1+\sin\:^2\left(x\right)\right)}{\sin\:^4\left(x\right)}=\csc\:^4\left(x\right)-1$
$dy=\left(x-3y\right)dx$
$\frac{d}{dx}27t^2$
$100-45x^2+x^4$
$\frac{1}{\sqrt{3}}=\frac{1}{\sqrt{3}}$
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