$\lim_{x\to0}\left(\frac{99-\cos\left(x\right)}{x^2}\right)$
$\left|+6\right|+\left|+6\right|$
$\left(\sin^2x\right)\left(\cos x\right)=6\sin^3x$
$secxtanx\left(1-sin^2x\right)=sinx$
$-12c^2-2c^2$
$31x-x^2>100$
$\left(4\pi\right)\left(0.07\right)$
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