Source: Extra Practice
If , find the value of .
Options
Option A is correct
Option B
Option C
Option D
Explanation
Using the change-of-base formula, we write : .
Notice that the terms cancel out telescopically:
- The denominator cancels with the next numerator .
- The denominator cancels with the next numerator , and so on.
After all cancellations, only the first numerator and the last denominator remain: .
In exponential form, this is: .