Obtaining centre and radius of a circle from general equation of a circle
A square insc...
Question
A square inscribed in the circle x2+y2−2x+4y+3=0. Its side are parallel to the coordinate axes. Then, one vertex of the square is
A
(1+√2,2)
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B
(1−√2,−2)
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C
(1,−2+√2)
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D
Noneofthese
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Solution
The correct option is DNoneofthese The center of the given circle is (1,−2).
Since the sides of the square inscribed in the circle are parallel to the coordinate axes, so the x-coordinate of any vertex cannot be equal to 1 and its y-coordinate cannot be equal to −2.
and option A is not lying on circle.
Hence, none of the points given in (A),(B) and (C) can be the vertex of the square.