Published by:
CGP EDU Academic Team
Published on: August 12, 2026
In a triangle ABC if tan A < 0 then:
Text Solution
Verified by ExpertsThe correct answer is:
B
tan A < 0 and A + B + C = 180°
⇒ A > 90° ⇒ B + C < 90° ⇒ tan(B + C) > 0
⇒ 
> 0 ⇒ 1 – tanB tanC > 0 tan B tanC < 1
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