Question

Se considera nr. nat A. Calculati 675:a la puterea a 3-a​

Answer 1

Răspuns:75

Explicație pas cu pas:

$a=[4*3+(121-1):8]^{7} :9^{10}=(12+15)^{7}:9^{10}=27^{7}:9^{10}=(3^{3})^{7}:(3^{2})^{10}=3^{21}:3^{20}=3^{21-20}=3^{1}=3\\a=3\\675:a^{3}=675:3^{3}=675:9=75$