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3:29
YouTube
The Math Sorcerer
Verify the Trigonometric Identity cos(x - pi/2) = sin(x)
In this video we verify the trigonometric identity cos(x - pi/2) = sin(x). To do this we use the difference identity for the cosine function. I hope this video helps someone who is learning trig. Useful Math Supplies https://amzn.to/3Y5TGcv My Recording Gear https://amzn.to/3BFvcxp (these are my affiliate links) ***********Math, Physics, and ...
9.6K views
Jan 9, 2023
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