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

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

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

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

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

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

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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**.

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

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