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Question

If 3 tan 2θ-3=0 then θ=?
(a) 15°
(b) 30°
(c) 45°
(d) 60°

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Solution

As we know that,
tan60°=3Thus,if 3 tan2θ-3=03 tan2θ=3tan2θ=33tan2θ=32θ=60°θ=30°Hence, the correct option is b.

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