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Name: _________________________________________ Period: ______ Weekly #4: Ch 8-9 REVIEW-DUE 5/19 Date: ____________________ Show all work for all questions. Due Tuesday 05/19/2015; Quiz Tuesday. 7 1. If sin 𝐴 = − 25 and <A terminates in Quadrant IV, tan A equals 7 7 (1) − 25 (2) − 24 (3) − 24 7 2. What is the number of degrees in an angle whose radian measure is (1) 576 (2) 288 (3) 225 24 (4) − 25 8𝜋 ? 5 (4) 113 3. An angle, P, drawn in standard position, terminates in Quadrant II if (1) cos P < 0 and csc P < 0 (3) csc P > 0 and cot P < 0 (2) sin P > 0 and cos P > 0 (4) tan P < 0 and sec P > 0 4. What is the radian measure of an angle whose measure is -420⁰? (1) − 7𝜋 3 (2) − 7𝜋 6 (3) 7𝜋 6 (4) 7𝜋 3 5. In right triangle ABC, hypotenuse AB = 10 and m<B = 53. Find AC to the nearest integer. (1) 6 (2) 8 (3) 13 6. Show that that sec 𝜃 sin 𝜃 cot 𝜃 = 1 is an identity. 7. If the value of 𝑡𝑎𝑛𝜃 = − 10 9 and 𝑠𝑖𝑛𝜃 > 0, find the value of 𝑐𝑜𝑠𝜃 (4) 15 Name: _________________________________________ 8. Given 𝑓(𝑥) = 4 cos 𝑥+sin 𝑥 , 2 cos 𝑥 Date: ____________________ find 𝑓(60) 9. List the three trigonometric Pythagorean identities: 10. Express as a monomial with a single trig function or a constant: cot 𝑥 cos 𝑥 11. Solve algebraically for all exact values of x in the interval 0 ≤ 𝑥 < 2𝜋: 2cos2x + 5cosx = 3 Period: ______ Weekly #4: Ch 8-9 REVIEW-DUE 5/19