24
MCR 3U1-03 155 UNIT 5 TEST: TRIGONOMETRY Mrs. Behnke Name:_____________________________ PARTA: TRIGONOMETRIC RATIOS. CASTRULE AND SPECIAL TRIANGLES 1. A point P(3, -2) lies on the terminal arm of an angle A in standard position. (a) Draw the triangle on the (b) Determine the exact length of the Cartesian Plane. [1] terminal arm (i.e. Find r) [1] (b) State the 3 primary trigonometric ratios in fraction form (exact answers no decimals). [3] (c) State the 3 reciprocal trigonometric ratios in fraction form. [3] (d) Calculate the related acute angle, /3, and the principal angle, 0 to the nearest tenth of a degree. [2] 2. Find all values of LA, to the nearest degree if 00 U 360°. For full marks, draw a diagram to support your answers. [6] a) cosA=_L b)cscO=—2 3. State two values of U to the nearest degree 4. Evaluate. Give an exact answer. for the following trigonometric ratio. [3] You must show your work for full marks. 13] cscO = —1.155 cos22S°sin4S°tanl2O° 5. Use the CAST rule and your knowledge of special angles to determine values for all 3 primary trigonometric ratios of the following angles. For full marks, leave answers exact and in fraction form and provide a diagram to support your answer. [61 a) 150° b) 315°

exactteachers.wrdsb.ca/.../2019_MCR3UI_Unit-5_Test-SOLUTIONS.pdf · 2020. 5. 3. · UNIT 5 TEST: TRIGONOMETRY Mrs. Behnke Name:_____ PART A: TRIGONOMETRIC RATIOS. CAST RULE AND SPECIAL

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