22. Which of the following values of y will allow you to prove that tan r cot r -cos a = y is always true? O y = csco x O y = sin x Oy= sec r Oy tan’ x 23. To the nearest degree, what is the measure of the angle in standard position whose ray intersects the unit circle at 1 2 ‘ 2 7 O 0 ~ 60 O 0 ~ 30 N O O ~ 450 13. Use the triangle below to determine sin A if a = 15 and b = 8. D B O sin A = 8 15 O sin A = 7 O sin A = 15 17 O 17 15 4 Part A: Estimate the measure of the angle. Part B: Justify your estimate with a complete sentence. Part C: Find the measure of the angle using a protractor. Explain the steps you followed to measure the angle…. Show more Math Algebra MAC 1147 Share QuestionEmailCopy link Comments (0)