Solve the following? #log_3 81=-1#.

2 Answers

#log_3 81 = 4#

Explanation:

#3*3*3*3 = 81#

Jun 7, 2018

#4!=-1#

Explanation:

We can rewrite the left hand side as being equal to

#log_3(3^4)=-1#

The base-#3#s will cancel, and we're left with

#4=-1#

Which is obviously not true. We can say

#4!=-1#

Hope this helps!