Math, asked by manohar13mn, 6 months ago

all 9 A - lan 4A = tan 13 A tan 9 A tan 4A
Show that cot x cot 2x - cot 2x scot 3x - cot 3x cot x = 1.

Answers

Answered by ngnirmal5

0

Step-by-step explanation:

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