Class 9th math Review Exercise 2 solution english PCTB

Question 6: Find value of \(x\) in the following:

\((i)\) \(\quad\) \(\log_{9} x=0.5 \)

Solution:

\[
\begin{align}
\log_{9} x &= 0.5\\
x &= 9^{0.5}\\
&= 9^{\frac{1}{2}}\\
&= 3^{2\times \frac{1}{2}}\\
&= 3
\end{align}
\]

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