MCQ
The value of $\tan 3 A-\tan 2 A-\tan A$ is :
  • $\tan 3 A \tan 2 A \tan A$
  • B
    $-\tan 3 A \tan 2 A \tan A$
  • C
    $\tan A \tan 2 A-\tan 2 A \tan 3 A-\tan 3 A \tan A$
  • D
    $0$

Answer

Correct option: A.
$\tan 3 A \tan 2 A \tan A$
(A)

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