MCQ
$\tan 3 A-\tan 2 A-\tan A$ का मान होगा-
- ✓$\tan 3 A \tan 2 A \tan A$
- B$-\tan 3 A \tan 2 A \tan A$
- C$\tan A \tan 2 A-\tan 2 A \tan 3 A-\tan 3 A \tan A$
- Do
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