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Popular >

expand 1/(7^{-2)}

Solution

expand

\frac{1}{7 ^{- 2}}

Solution

49

Solution steps

\frac{1}{7 ^{- 2}}

Apply exponent rule:

a^{- b} = \frac{1}{a ^{b}}

7^{- 2} = \frac{1}{7 ^{2}}

= \frac{1}{\frac{1}{7 ^{2}}}

Apply the fraction rule:

\frac{1}{\frac{b}{c}} = \frac{c}{b}

= \frac{7 ^{2}}{1}

Apply the fraction rule:

\frac{a}{1} = a

= 7^{2}

7^{2} = 49

= 49

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Frequently Asked Questions (FAQ)

What is expand 1/(7^{-2)} ?
The solution to expand 1/(7^{-2)} is 49