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JEE Main 2013 Mathematics question

MathematicsCircleJEE Main 2013

If two vertices of an equilateral triangle are A(−a, 0) and B(a, 0), a > 0, and the third vertex C lies above x-axis then the equation of the circumcircle of △ABC is :

Answer: (1)

Solution

C = ; the circumcentre is the centroid , radius .

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Question ID VK-104060