Trigonometry: The Law of Cosines
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you are a wonderful human being
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the only reason im passing math is this guy thumbs up!
3 months ago 2
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THANK YOU all of the other vids use an angle.. I needed 3 sides and no angle, you showed both ways..
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at 5:00, you need to put a negative in front of (2ac), so it should look like -2ac
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@perlazulmanzanita You do the inverse of the COS (cos ^ -1) and enter "-0.677". You'll get 128 (rounded to three sig figs.)
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How did he solve it in the calculator?? I CANT!!! what happen with the cos???
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thank you, creepy math man.
jacSMACs 8 months ago 12
you should choose simpler numbers.
yoyoimut 9 months ago 8