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Using Exponents

Question

Express the following as a rational number:
$$(2/3)^5$$

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Solution

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We have,
$$(2/3)^5=(2^5/3^5)$$

$$=(2\times 2\times 2\times 2\times 2)/(3\times 3\times 3\times 3\times 3)$$
$$=(32/243)$$

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