Proof of the cosine rule
How to prove the cosine rule using a geometric argument.
Whiteboard Maths
82.8K views • Jan 30, 2021
About this video
How to prove the cosine rule using a geometric argument.
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Views
82.8K
Likes
1.5K
Duration
6:07
Published
Jan 30, 2021
User Reviews
4.7
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