Where did I make the mistake?
17²=16²+8²-2(16)(8)cos x°
289=256+64-256cos x°
289=320-25...
Mathematics, 05.04.2021 22:00 victory08
Where did I make the mistake?
17²=16²+8²-2(16)(8)cos x°
289=256+64-256cos x°
289=320-256cos x°
-320 -320
-31=-256cos x° (both sides divided by -256)
0.1=cosx°
Arc cosine, x=84.26
Answers: 2
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