Published by:
CGP EDU Academic Team
Published on: August 14, 2026
If D is the mid point of CA in triangle ABC and Δ is the area of triangle, then show that
tan ( ∠ ADB ) = 
.
Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION.
Let ∠ ADB = θ
∴ we have to prove that tan θ = 
if we aply m – n rule, then
(1 + 1) cot θ = 1.cot C – 1.cotA.
= 
– 
= 
– 
= 
= 
[2(a 2 – c 2 )]
∴ 2cot θ = 
∴ tan θ = 
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