Question

So sánh -1/5 mũ 300 và -1/5 mũ 500

Giúp Mik Vs Ak

 

Answer 1

\(\left(-\frac{1}{5}\right)^{300}=-\frac{1^{300}}{5^{300}}=-\frac{1}{5^{300}}\)

\(\left(-\frac{1}{5}\right)^{500}=-\frac{1^{500}}{5^{500}}=-\frac{1}{5^{500}}\)

Ta có : 

\(5^{300}< 5^{500}\)

\(\Rightarrow-5^{300}>-5^{500}\)

\(\Rightarrow-\frac{1}{5^{300}}>-\frac{1}{5^{500}}\)

\(\Rightarrow\left(-\frac{1}{5}\right)^{300}>\left(-\frac{1}{5}\right)^{500}\)