Question

1 by 7 to the power minus 2 equals​

Answer 1

Answer:

49

Step-by-step explanation:

${ \frac{1}{7} }^{ - 2} \\ = ) {7 }^{2} \\ = )49$

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Answer 2

Answer:

${ (\frac{1}{7}) }^{ - 2} = {7}^{2} = 49$

Step-by-step explanation:

important formula:

${a}^{ - m} = { (\frac{1}{a} )}^{m}$