(a+b+c)(b+c-a)=3bc" then "A=...

(a+b+c)(b+c-a)=3bc" then "A=

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If (a+b+c)(b+c-a)=3bc then show that angleA=pi/3

If (a+b+c) (b+c-a) = 3bc then find angle A .

If(a + b + c)(b + c-a) = 3bc in /_\ABC , prove that A = 60^@

In triangle ABC, if (a+b+c)(b+c-a) = 3bc, state which of the following is the value of the angle A?

underset then In ABC, if (a+b+c)(b+c-a)=3bc

If (a-b), (b-c), (c-a) are in GP then prove that (a+b+c)^2 =3(ab+bc+ca)..

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