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Hello. Great video as I learned it completely here. Just a quick question. How did you simplify at 13:14 the cos 2 theta's?
Thank you, Simsek... Here we have taken out common term out... That is cos 2theta...
@@rkgodara0200 Thank you. It makes sense. I am very happy with the videos you make like this and others.
Hello. Great video as I learned it completely here. Just a quick question. How did you simplify at 13:14 the cos 2 theta's?
Thank you, Simsek... Here we have taken out common term out... That is cos 2theta...
@@rkgodara0200 Thank you. It makes sense. I am very happy with the videos you make like this and others.