−18.01−1.309-18.01-1.309−18.01−1.309
(m−1)(m−20)\left(m-1\right)\left(m-20\right)(m−1)(m−20)
x28\sqrt[8]{x^{2}}8x2
limx→+∞(x4+x3+x2+4e5x)\lim_{x\to+\infty}\left(\frac{x^4+x^3+x^2+4}{e^{5x}}\right)x→+∞lim(e5xx4+x3+x2+4)
b2−3b−28b^2-3b-28b2−3b−28
(b+2f)(b2−2bf+f2)\left(b+2f\right)\left(b^2-2bf+f^2\right)(b+2f)(b2−2bf+f2)
tgasenacosatga\frac{sena}{cosa}tgacosasena
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