Question

Comparați nr: a=5la puterea 30 si b=7la puterea 20

Answer 1

$a=5^{30}=(5^3)^{10}=125^{10}$

$b=7^{20}=(7^2)^{10}=49^{10}$

$125^{10}>49^{10} =\textgreater 5^{30}>7^{20} =\textgreater a>b$