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OpenStudy (anonymous):
Given tan Ø = - 6/5 and 3.14/2 <Ø <3.14, determine the value of cos Ø a. cos Ø = 5 square root 61/61 b. cos Ø = - 5 square root 61/61 c. cos Ø = 5 square root 11/11 d. cos Ø = - 5 square root 11/11
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