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Exponents with Unlike Bases and Same Exponent

Using laws of...

Question

Using laws of exponents, simplify and write the answer in exponential form:
$8^{r} \div 8^{2}$

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Solution

$8^{r} \div 8^{2} = 8^{r - 2}$
$[∵ a^{m} \div a^{v} = a^{m - v}]$

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NCERT - Standard VII

Exponents with Unlike Bases and Same Exponent

Standard VII Mathematics

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