Question

Express
${4}^{ - 2}$
as a power with base 2​

Answer 1

Answer:

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

Answer 2

Answer:

$</p><p></p><p>\begin{gathered} {4}^{ - 2} \\ \\ = \: \frac{1}{ {4}^{2} } \\ \\ = \: \frac{1}{( {2}^{2})^{2} } \\ \\ = \: \frac{1}{ {2}^{4} } \end{gathered}4−2=421=(22)21=241</p><p></p><p>$