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25 March 2011

25 March 2011. Precalculus. Solve 4(3x – 1) +2x = 24 for x. x = x = x = 8 x = 3 x = 2. 300. 0 of 30. COMING MONDAY……. MIDTERM EXAMS!!!!!!!!!!!!!!! This exam counts as 25% of your grade, so answering C for all questions will NOT be a good idea. Agenda.

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25 March 2011

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  1. 25 March 2011 Precalculus

  2. Solve 4(3x – 1) +2x = 24 for x. • x = • x = • x = 8 • x = 3 • x = 2 300 0 of 30

  3. COMING MONDAY…… • MIDTERM EXAMS!!!!!!!!!!!!!!! • This exam counts as 25% of your grade, so answering C for all questions will NOT be a good idea

  4. Agenda • Go over quiz – answer any questions • Calculate an exact trigonometric value based on given information. • Student Practice (30 min) • Simplifying Trigonometric Expression • Student Practice (15 min)

  5. Trigonometric Identities 3/22 Use the given information to find the trigonometric value. • Using Trig Identities

  6. Trigonometric Identities 3/22 Use the given information to find the trigonometric value. Example: If sec x = , find cos x • Using Trig Identities

  7. Trigonometric Identities 3/22 Use the given information to find the trigonometric value. Example: If sec x = , find cos x sec x = • Using Trig Identities

  8. Trigonometric Identities 3/22 Use the given information to find the trigonometric value. Example: If sec x = , find cos x sec x = • Using Trig Identities

  9. Trigonometric Identities 3/22 Use the given information to find the trigonometric value. Example: If sec x = , find cos x sec x = = • Using Trig Identities

  10. Trigonometric Identities 3/22 Use the given information to find the trigonometric value. Example: If sec x = , find cos x sec x = = Do: 1 / (3 / 2) = • Using Trig Identities

  11. Trigonometric Identities 3/22 Use the given information to find the trigonometric value. Example: If sec x = , find cos x sec x = = Do: 1 / (3 / 2) = 0.666… • Using Trig Identities

  12. Trigonometric Identities 3/22 Use the given information to find the trigonometric value. Example: If sec x = , find cos x sec x = = Do: 1 / (3 / 2) = 0.666… Math  Enter  Enter • Using Trig Identities

  13. Trigonometric Identities 3/22 Use the given information to find the trigonometric value. Example: If sec x = , find cos x sec x = = Do: 1 / (3 / 2) = 0.666… Math  Enter  Enter = • Using Trig Identities

  14. Trigonometric Identities 3/22 Use the given information to find the trigonometric value. Example: If cscq = , find tan q • Using Trig Identities

  15. Trigonometric Identities 3/22 Use the given information to find the trigonometric value. Example: If cscq = , find tan q csc2q = 1 + cot2q • Using Trig Identities

  16. Trigonometric Identities 3/22 Use the given information to find the trigonometric value. Example: If cscq = , find tan q csc2q = 1 + cot2q ( )2 = 1 + cot2q • Using Trig Identities

  17. Trigonometric Identities 3/22 Use the given information to find the trigonometric value. Example: If cscq = , find tan q csc2q = 1 + cot2q ( )2 = 1 + cot2q ( ) = 1 + cot2q • Using Trig Identities

  18. Trigonometric Identities 3/22 Use the given information to find the trigonometric value. Example: If cscq = , find tan q csc2q = 1 + cot2q ( )2 = 1 + cot2q ( ) = 1 + cot2q ( ) = cot2q • Using Trig Identities

  19. Trigonometric Identities 3/22 Use the given information to find the trigonometric value. Example: If cscq = , find tan q csc2q = 1 + cot2q ( )2 = 1 + cot2q ( ) = 1 + cot2q ( ) = cot2q = cot q • Using Trig Identities

  20. Trigonometric Identities 3/22 Use the given information to find the trigonometric value. Example: If cscq = , find tan q csc2q = 1 + cot2q ( )2 = 1 + cot2q ( ) = 1 + cot2q ( ) = cot2q = cot q = tan q • Using Trig Identities

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