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If in a triangle ABC, a^2+b^2+c^2=ca+ab ...

If in a triangle `ABC`, `a^2+b^2+c^2=ca+ab sqrt3` then the triangle is

A

equilateral

B

right angled and isosceles

C

right angled with `A=90^(@),B=60^(@),C=30^(@)`

D

none of the above

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The correct Answer is:
C
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