Question

Assinale a alternativa correta:

Answer 1

Resposta:

ITEM (E)

Explicação passo-a-passo:

$\bf{ log_{ \frac{1}{2} }(4) = x }$

$\bf{ log_{ {2}^{ - 1} }(4) = x}$

$\bf{ log_{ {2}^{ - 1} }( {2}^{2} ) = x }$

$\bf{ \frac{2}{ - 1} \times log_{2}(2) = x}$

$\bf{ - 2 log_{2}(2) = x}$

$\bf{ - 2 \times 1 = x}$

$\bf{ - 2 = x}$

$\boxed{ \bf{x = - 2}}$