Question

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

Answer 1

$\left(A\right)$ Given, $3^2=9$

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

Apply logarithm, we get
${\log }_7\left(\frac{1}{49}\right)=-2$