$3\sin^2\left(x\right)+\cos^2\left(x\right)+\cos\left(x\right)=0$
$27\cdot1$
$\frac{x^2}{9}\:+\frac{2xy}{3}x+y^2$
$-110+25-\left(-12\right)+13-0$
$8x^2-8x+8$
$x^3-6x^2+27$
$f\left(x\right)=\frac{1}{\sqrt{1-n^6}}$
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