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Centre of circle , passing through (0,0)...

Centre of circle , passing through (0,0) ,(a,0) and (0,b) , is

A

(a,b)

B

`((a)/(2),(b)/(2))`

C

`(-(a)/(2),(b)/(2))`

D

`(-a,-b)`

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The correct Answer is:
B
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