Question

7. You are given that u is an angle in quadrant III with sin u -, and that w is an angle in the first quadrant with tan w = ?
(f) cos (W + u)
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Answer #1

sinu -US= Perfendicular (P) Hypatinouse (H) calculate Base (B) using pythagorous theorem. (H)2 = (P)2+ (B)2 (5)2 = (W)+(B)2 (- (f) Cos (w+4)= caso casu - sin wsinu 19) (-)-(3) + -4 5 Il -15 65 48 6S cos (wtu) - 33 65 3 3 3

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