# (a) If cos a = – v3/5 and a is in the third quadrant, find exact values for sin a and tan a. (b) If.

(a) If cos _ = _ _3/5 and _ is in the third quadrant, find exact values for sin _ and tan _. (b) If tan _ = 4/3 and _ is in the third quadrant, find exact values for sin _ and cos _. (c) If cos _ = 0.4626 and 3_/2 < _=""< 2_,="" find="" decimal="" approximations="" for="" sin="" _="" and="" tan="" _.="" (d) If sin _ = _0.5917 and _ < _=""< 3_/2,="" find="" decimal="" approximations="" for="" cos="" _="" and="" tan="" _.="" Use the fact that sine is an odd function and cosine is an even function to show that tangent is an odd function.

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