Question

so sánh : 10^{20 và} 90¹⁰

Answer 1

Ta có:10²⁰=(10²)¹⁰=100¹⁰>90¹⁰

=>10²⁰>90¹⁰

Answer 2

Ta có: 10^20=(10^2)^10

          90^10=(90^1)^10

         =100^10>90^10

        =>10^20>90^10