Say true or false — task. Mathematics State Board, Class 8.

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1. If

8^{x} = \frac{1}{64}

, the value of \(x\) is \(-2\).

2. The simplified form of

{(256)}^{\frac{- 1}{4}} \times 4^{2}

\frac{1}{4}

3. Using the power rule,

{(3^{7})}^{- 2} = 3^{5}

4. The standard form of \(2 \times 10^{-4}\) is \(0.0002\).

5. The scientific form of \(123.456\) is \(1.23456 \times 10^{-2}\).

Did you find an error?

4. Say true or false