SOLUTION: Evaluate the logarithm without using a calculator. log1/3 81 What I tried so far was setting it equal to x. Then I ended up with: 1/3^x = 81 I'm not sure if this is the

Question 618085: Evaluate the logarithm without using a calculator.
log1/3 81
What I tried so far was setting it equal to x.
Then I ended up with:
1/3^x = 81
I'm not sure if this is the correct way to do it or not. If it is what do I do next, if it is not then HELP please.
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!

Yep, that is exactly what you need to do. Now, recognize that 81 is 9 times 9 and 9 is 3 times 3, so 81 has to be 3 to the 4th.

But the 3 is in the denominator of the fraction 1/3. Now what? How about a negative exponent?

Check out the value of

on your calculator.

John

My calculator said it, I believe it, that settles it

The Out Campaign: Scarlet Letter of Atheism

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