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Logarithmic Inequalities

Express the f...

Question

Express the following equations in logarithmic form:
(A) $3^{2} = 9$
(B) $7^{- 2} = \frac{1}{49}$

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Solution

$(A)$ Given, $3^{2} = 9$
Apply logarithm, we get
${log}_{3} 9 = 2$
$(B)$ Given, $7^{- 2} = \frac{1}{49}$
Apply logarithm, we get
${log}_{7} (\frac{1}{49}) = - 2$

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