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Jan 30, 2024 at 11:26 comment added Heretolearn Thank u sir for ur reply...
Jan 30, 2024 at 11:24 comment added Matt L. Have you checked the definitions of the angles in both references? Don't forget that $\sin x=\cos(x-\pi/2)$.
Jan 30, 2024 at 11:17 history asked Heretolearn CC BY-SA 4.0