$48^3:24^3$
$\left(1-cos\left(\theta\right)\right)^{\frac{1}{2}}\times\left(1+cos\left(\theta\right)\right)^{\frac{1}{2}}\:=\:sin\left(\theta\right)$
$x^2+2x=35$
$\log\left(x^2-x-2\right)=1$
$5n-5d$
$-m-5m$
$\sin^{-1}0.15$
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