tan(a+b)tan(a-b)=1 Trigonometric equation solved!

Channel:
Australia Magic Monk
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64,000
Published on ● Video Link: https://www.youtube.com/watch?v=DGagWJcJniA


Duration: 22:24
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16

An instagram follower asked me this question: Find all values of A such that tan(A+B)tan(A-B)=1. It wasn't a very easy question but I worked it out! Had to use a bunch of trigonometric identities. Enjoy!



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