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ET 5.4a: Copy Formulas

ET 5.4a: Copy Formulas. Sum and Difference Formulas. Selfless Singing Songs by Sam. Sum and Difference Formulas. Catty Cosset can’t share. Sum and Difference Formulas. Find the exact value of cos 75˚. Find the exact value of. Find the exact value of sin42˚cos12 ˚ -cos42 ˚ sin12 ˚.

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ET 5.4a: Copy Formulas

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  1. ET 5.4a: Copy Formulas Sum and Difference Formulas

  2. Selfless Singing Songs by Sam. Sum and Difference Formulas

  3. Catty Cosset can’t share. Sum and Difference Formulas

  4. Find the exact value of cos 75˚

  5. Find the exact value of

  6. Find the exact value of sin42˚cos12 ˚ -cos42 ˚ sin12 ˚ sin(42 – 12) sin(30) 1/2

  7. Assignments 5.4 • Day1: 1,3,9,25, 31, 33, 35 • Day 2: 51, 53, 54, 55, 60, 66, 71 • Fudge: 98, 100, 102, 104

  8. ET 5.4b Prove that the sine curve is a translation of the cosine curve.

  9. Derive the Reduction Formula by simplifying the expression.

  10. Derive the Reduction Formula by simplifying the expression.

  11. Write as an algebraic expression. √2 1 Let u = arccos x Let u = arctan 1 1 u u tanu = 1 cosu = x 1 x

  12. Assignments 5.4 • Day1: 1,3,9,25, 31, 33, 35 • Day 2: 51, 53, 54, 55, 60, 66, 71 • Fudge: 98, 100, 102, 104

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