Question

The logarithmic form of $100=5^x$ is .

• A. $lo{g}_{5}100=x$
• B. $lo{g}_{x}100=5$
• C. $lo{g}_{100}x=5$

Answer 1

The correct option is A $lo{g}_{5}100=x$

If $100=5^x$, then $lo{g}_{5}100=x$.
As if $a^x=N$ then $lo{g}_{a}N=x$
where $a>0$ and $a\ne 1$