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Find the centre and radius of the circle...

Find the centre and radius of the circles`2x^2+2y^2-x=0`

A

`((x_(1) + x_(2))/(2), (y _(1) + y _(2))/(2))`

B

`(-(1)/(2), 0) and 1/2`

C

`((1)/(2), 0) and 1/2`

D

`(0, -(1)/(4)) and 1/4`

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The correct Answer is:
A
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TARGET PUBLICATION-CIRCLE AND CONICS -COMPETITIVE THINKING
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  12. Let the line segment joining the centres of the circles x^(2)-2x+y^(2)...

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  13. If the lengths of the tangents drawn from P to the circles x ^(2) + y ...

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