Published by:
CGP EDU Academic Team
Published on: August 13, 2026
If Δ = a 2 – (b – c) 2 , where Δ is the area of triangle ABC, then
tan A is equal to-
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
Δ = a 2 – (b – c) 2 Δ = [a – (b – c)] [a + (b – c)]
Δ = (a + c – b) (a + b – c)
Δ = (2s –2b) (2s –2c)
= 4 (s – b) (s – c)
= 4 
⇒ 
= 
⇒ tan 
= 
⇒ tan A = 
tan A = 
= 
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