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Popular >

simplify (9/7)^{-2}

Solution

simplify

(\frac{9}{7})^{- 2}

Solution

\frac{49}{81}

+1

Solution steps

(\frac{9}{7})^{- 2}

Apply exponent rule:

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

(\frac{9}{7})^{- 2} = \frac{1}{( \frac{9}{7} ) ^{2}}

= \frac{1}{( \frac{9}{7} ) ^{2}}

(\frac{9}{7})^{2} = \frac{81}{49}

= \frac{1}{\frac{81}{49}}

Apply the fraction rule:

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

= \frac{49}{81}

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\frac{x}{18} = \frac{5}{6}

7 ∣ 2 x - 3 ∣ = 49

Frequently Asked Questions (FAQ)

What is (9/7)^{-2} ?
The solution to (9/7)^{-2} is 49/81