Question

so sánh -31^400 và -2^2000

Answer 1

\(\left(-2\right)^{2000}=\left[\left(-2\right)^5\right]^{400}=\left(-32\right)^{400}=32^{400}\)

\(\left(-31\right)^{400}=31^{400}\)

Vì 32 > 31 => 32⁴⁰⁰ > 31⁴⁰⁰

Vậy \(\left(-31\right)^{400}<\left(-2\right)^{2000}\).

Answer 2

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