$10^{1.08}=12$
$\lim_{x\to\infty}\left(x^3\cdot\left(\frac{1}{x}-sin\left(\frac{1}{x}\right)\right)\right)$
$sen^22x+3.cos^22x=2,5$
$3n-12n^2-27-24-9n-30-33-69$
$3x^2-9x-7+x^2+4x+6+8x^2$
$225=225$
$4x^2-7=29$
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