**Note: **If you would like a review of trigonometry, click on
trigonometry.

Work the following problems. Click on **Solution**.

**Problem** 9.7a:

**Problem** 9.7b:

**Problem** 9.7c:

**Problem** 9.7d:

If you would like to review the word solution to any of the above problems,
click on solution to the right of the problem.**
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