Question

Se log2x +log2y = 10, então x . y vale?​

Answer 1

Resposta:

Explicação passo-a-passo:

Propriedade de logaritmos

$loga+logb=log(a.b)\\\\Aplicando\\\\log2x+log2y=10\\\\log(2x.2y)=10\\\\log(4xy)=10\\\\\\4xy=10^{10}\\\\\\xy=\dfrac{10^{10}}{4}$