Simplify the expression. 9 log 9 2
This is 9 to the power of log base 9 of 2
a. 2
b. 18
c. 4
d. 9
e. none of these
To simplify the expression 9 log 9 2, we need to evaluate the logarithm.
The logarithm of 2 with base 9, written as log 9 2, represents the exponent to which we need to raise 9 to obtain 2. In other words, 9 to the power of log base 9 of 2 is equal to 2.
So, 9 log 9 2 is equal to 9^2, which is 81.
Since none of the given options is equal to 81, the correct answer is e. none of these.