Math, asked by 8178858088, 11 months ago

proove that : tan9A - tan6A -tan3A = tan9A.tan 6A.tan tan 3A

shreyanshgupta9: Is your question complete?

Answers

Answered by poo2328

2

9A =6A+3A sport ran both side and then use identity tan (A+B)=tan A+ tanB/1-tanAtanB

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