Question

so sánh 4^30+2^60 và 4^29+2^61

Answer 1

Ta có:

\(4^{30}+2^{60}=\left(2^2\right)^{30}+2^{60}\)

                  \(=2^{60}+2^{60}\)

                 \(=2^{60}.2\)

                 \(=2^{61}\)

Mà \(4^{29}+2^{61}>2^{61}\)

\(\Rightarrow4^{30}+2^{60}< 4^{29}+2^{61}\)

Answer 2

4^30 + 2^60 > 4^29 + 2^61

Answer 3

Ta có:

4³⁰ + 2⁶⁰ = (2²)³⁰ + 2⁶⁰ = 2⁶⁰ + 2⁶⁰ = 2⁶⁰.2 = 2⁶¹

Do 2⁶¹ < 4²⁹ + 2⁶¹

=> 4³⁰ + 2⁶⁰ < 4²⁹ + 2⁶¹

Ủng hộ mk nha ^_-