What is the value of $7^{- 2}$ ?

\frac{- 1}{49}

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\frac{1}{49}

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\frac{1}{14}

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Solution

The correct option is B $\frac{1}{49}$
$7^{- 2} = \frac{1}{7^{2}} = \frac{1}{49}$ $[U s i n g a^{- m} = \frac{1}{a^{m}}]$

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Similar questions

What is the value of -7 + 2?

(3 \sqrt{8} + 2 \sqrt{7}) \times (3 \sqrt{8} - 2 \sqrt{7})

7 \frac{1}{2}

7 \frac{1}{2}

x

\frac{2}{7}, x, \frac{7}{2}

G . P .

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