Question

mim ajudem rpd por favor.​

Answer 1

Letra B:

$\sf  log_{a}\Bigg( \frac{2 \cdot k}{d} \Bigg) \\ \\ \\ \sf  log_{a}(2k) - log_{a}(d) \\ \\ \\ \sf  {\color{red}log_{a}(2) + log_{a}(k) - log_{a}(d) }$

Letra C:

$\sf  log_{a}\Big(a {}^{ - n} \Big) \\ \\ \\ \sf  - n \cdot log_{a}(a) \\ \\ \\ \sf  - n \cdot 1 \\ \\ \\ \sf {\color{red} - n}$

Letra D:

$\sf  log_{a}\Bigg( \frac{1}{y} \Bigg) \\ \\ \\ \sf  log_{a}\Big(y {}^{ - 1} \Big) \\ \\ \\ \sf  - 1 log_{a}(y) \\ \\ \\ \sf  {\color{red}- log_{a}(y) }$

Att: Nerd1990