cot(x+y) | cot(A+B)

Описание

In this video, we will learn to expand cot(x+y) or you can say to prove the trigonometry identity cot(x+y) = (cot x cot y - 1)/(cot y + cot x)

Other topics of this video are:
Expansion of cot(A + B)
How to prove the identity cot(A + B) = (cot A cot B - 1)/(cot B + cot A)?
Formula for cot(x + y)
Formula for cot(A + B)

I, Ravi Ranjan Kumar Singh, have produced this video. All credits of this video belong to me.

You can email me at raviranjans@gmail.com

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