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Popular >

simplify (2/7)^{-2}

Solution

simplify

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

Solution

\frac{49}{4}

+1

Decimal Notation

12.25

Solution steps

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

Apply exponent rule:

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

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

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

(\frac{2}{7})^{2} = \frac{4}{49}

= \frac{1}{\frac{4}{49}}

Apply the fraction rule:

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

= \frac{49}{4}

Popular Examples

simplify-5\sqrt[3]{54}+7\sqrt[3]{16}simplify

x^{2} - 14 x = - 29

(u-14)(u+10)=-104

(u - 14) (u + 10) = - 104

join 1/2-(sqrt(3))/2 i join

\frac{1}{2} - \frac{3}{2} i

\frac{b}{30} = \frac{4}{5}

Frequently Asked Questions (FAQ)

What is (2/7)^{-2} ?
The solution to (2/7)^{-2} is 49/4