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Day 7 Notes

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Day 7 Notes

  1. 1. Day 6 Homework Solutions 1 1
  2. 2. 33) 34) ­1 5 3 ­1 ­4
  3. 3. A function of an angle is equal to the cofunction of its complement. There are 3 pairs of cofunctions: 1.  sine and cosine 2.  secant and cosecant 3.  tangent and cotangent Examples:   1.  sin 800 = cos 100 2.  sec 800 = csc 100 3.  tan 800 = cot 100 Try: 1.  cos 50 = sin ____ 2. tan 600 = cot ____ 3.  csc 120 = sec ____
  4. 4. Example:  Find θ to make the  statement true. 1.  sin 2θ = cos (θ + 15)
  5. 5. Write the expression as a function of an acute angle whose  measure is less than 450 1.  tan 720 2.  sec 1250 0 3.  cot ­277
  6. 6. Attachments Terminal­Initial Sides of Rotations.gsp

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