How do you evaluate $log_15 1$ ?

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Answer 1 · 2016-08-31T14:24:13

Zero

$2^3=8$ which can also be written as $log_2(8)=3$

This is I think quite easy to remember

So given $log_15(1)=x$ where you want to find X
Rewrite as $15^x=1$

Any number to the power of zero =1

So X=1

Answer 2 · 2016-08-31T14:31:37

$log_15 1 = 0$

The question we need to ask with log format is..

"What index/power of 15 will give 1?"

Any base raised to the power of 0 will give 1.

$15^0 = 1$

Log form and index form are interchangeable.

$log_15 1 = 0 hArr 15^0 = 1$

Remember that $0^0$ is undefined., so $log 0$ is undefined.

How do you evaluate log_15 1log_15 1?