$sen^2a\left(1-sen\:a\right)$
$12a^3+10a^2-42a$
$4\cdot10^6+8\cdot10^3+4$
$6\left(\frac{3}{2}-2v\right)$
$2x^2\left(3x^2-1\right)^2$
$.78+.06+.09+9.3+.12$
$6\cos\left(x\right)-1=2$
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