In a triangle ABC ,if r=r2+r3-r1,and angle A>π/3,then show that range of s/a is equal to (1/2,2).......... ...... .
In a triangle ABC ,if r=r2+r3-r1,and angle A>π/3,then show that range of s/a is equal to (1/2,2).......... ...... .
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