If log 3 = x and log 5 = y, then rewrite log 45.

Results 1 to 7 of 7

- April 19th 2009, 08:08 AM #1

- Joined
- Jul 2008
- From
- NYC
- Posts
- 1,489

- April 19th 2009, 08:10 AM #2

- April 20th 2009, 05:39 AM #3

- Joined
- Jul 2008
- From
- NYC
- Posts
- 1,489

- April 20th 2009, 06:37 AM #4

- April 20th 2009, 07:01 AM #5

- Joined
- Mar 2007
- Posts
- 1,240

You should have recognized this "formula" as an application of the basic log rules. (That is, they were supposed to have taught you the log rules before assigning this exercise.)

To learn how to expand and "compress" log expressions as demonstrated in this and other threads, try**here**.

- April 20th 2009, 10:06 PM #6

- Joined
- Jul 2008
- From
- NYC
- Posts
- 1,489

- April 20th 2009, 11:39 PM #7