**Let a be a positive number such that a does not equal 1, let
n be a real number, and let u and v be positive real numbers.**

**Logarithmic Rule 2:**

**Problem 3: ** Calculate .

**Solution:** Since,

you can calculate this problem in two ways:

- Find
rounded to 1.417.

- A second way to work the problem is to write as
rounded to 1.417.

**Check:** .

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