The correct option is A 7^ 2 1 ÷ 7 ÷ 7 = 17 ÷ 7 = 17 × 17 =17^2 = 7^ 2 So, option A is correct. ...

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Simplify: 1...

Question

Simplify: $1 \div 7 \div 7$

7^{- 2}

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7^{- 1}

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0.7

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0.777

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Solution

The correct option is A $7^{- 2}$
$1 \div 7 \div 7 = \frac{1}{7} \div 7 = \frac{1}{7} \times \frac{1}{7}$

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

So, option $A$ is correct.

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