Question

1/tan3A-tanA-1/cot3A-cotA
is equal to
tan 3 A-tan A cot3 A-cot A
(A) cot 2A
(B) tan 2 A
(C) cot 3A
(D) tan3A​

Answer 1

Answer :- (A) Cot 2A

Formula used :

tan(A - B) =

{tan(A) - tan(B)}/(1 + tanA.tanB)

Hope it helps....

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