$\cos8^{\circ}\cdot\cos22^{\circ}-\sen8^{\circ}\cdot\sen22^{\circ}$
$-3\cos-\sqrt{3}=0$
$-1.5x=-6$
$m^2-17m+72$
$-2t^2+5t-2=0$
$\log\left(3\right)+\log\left(x\right)=\log\left(15\right)$
$3=12$
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