Math, asked by reyadash, 1 year ago

show that cotx .cot2x - cot 2x.cot 3x.cotx =1

Answers

Answered by sandybaghel

Cot x.cot 2x-cot 2x.cot3x.cot x
=Cot x.cot 2x(1- cot3x )
=Cot x. Cot 2x. 1-cot 2x. Cot x
Cot x. Cot 2x/cot 2x . Cot x= 1

Hope it will help plese mark as brainiest

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