Maxima and MinimaHard
Question
P and Q are two points on a circle of centre C and radius α, the angle PCQ being 2θ then the radius of the circle inscribed the triangle CPQ is maximum when -
Options
A.sin θ = 
B.sin θ = 
C.sin θ = 
D.sin θ = 
Solution
s =
= α (1+sin θ)ᐃ =
α2 sin 2θ r =
Maximize ′r′.
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