find centre $ radius of the circle 4(x2+y2)+ 12ax - 6ay -a2 =0

4 (x2 + y2) + 12 ax – 6aya2 = 0

In the given equation, firstly we have to make the co-efficient of x2 and y2 unity, i.e.,

On comparing the above equation, with equation of circle

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