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15 20 Values of Trigonometric Functions Use an Addition or Subtraction Formula to write the expression as a trigonometric function of one number and then

15 20 Values of Trigonometric Functions Use an Addition or Subtraction Formula to write the expression as a trigonometric function of one number and then find its exact value 20011 o 15 sin 18 cos 27 cos 18 sin 27

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