Question

$4 ^ {x} = \frac{1}{2}$
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Answer 1

Resposta:

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