Question

$\tan (7\pi /6),\tan (9\pi /4)$, and $\tan (10\pi /3)$ are in

• A. A.P
• B. G.P
• C. H.P
• D. A.G.P

Answer 1

Answer: (B)

$\tan 30°.\tan 45°.\tan 240°$
i.e., $\tan 30°.\tan 45°,\tan 60°$
$\frac{1}{\sqrt{3}}.1,\sqrt{3}$ G.P