Trigonometric identity example proof involving all the six ratios | Introduction to trigonometry

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Watch as we try to prove a trigonometric identity in real-time. Instead of just showing the clean and final correct path to the proof, we show how we sometimes take a few wrong turns in the path to arriving at the right path. Created by Aanand Srinivas.
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Thank you alot sir because I am much dull in trigonometry this made me understanding easily thank you for khan academy

thanushreethanu
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Isn't he Aanand Srinivas from Byju's?

Kiwinov