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Simplifying and Verifying Trig Identities

Learn how to verify trigonometric identities by simplifying the more complex side, working on one side to match the other, factoring, using sine or cosine terms, LCD, and conjugates if needed. Practice verifying identities in homework assignments.

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Simplifying and Verifying Trig Identities

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  1. Use identities: Simplify:

  2. Verifying Trig Identities Section 5.2

  3. To Verify an Identity: • Simplify the more complicated side • Only work on one side – make it look like the other side. • Look to simplify by factoring • Get in terms of sin or cos • Use the LCD to get in 1 fraction. Use conjugates if you have conjugates in the top of 1 side and the bottom of the other side.

  4. Verify:

  5. Verify:

  6. Verify:

  7. Verify:

  8. Verify:

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  10. Verify:

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  13. Verify:

  14. Verify:

  15. Homework • HW 2

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