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The equation of the circle whose centre lies on x-axis at a distance h from the origin and radius is a, is given by
  • a)
    x2 + y2 - 2hx + h2 = a2
  • b)
    x2 + y2 - 2hx-2ky +h2 = 0
  • c)
    x2 + y2 - 2hx- 2ky+k2 = 0
  • d)
    none of the above
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
The equation of the circle whose centre lies on x-axis at a distance h...
Clearly the centre is (h, 0) and the radius is a.
∴ Equation of the circle is given by
(x - h )2+ (y -0 )2 = er
 or x3 + y2 - 2hx + h2 = a2
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Most Upvoted Answer
The equation of the circle whose centre lies on x-axis at a distance h...
Clearly the centre is (h, 0) and the radius is a.
∴ Equation of the circle is given by
(x - h )2+ (y -0 )2 = er
 or x3 + y2 - 2hx + h2 = a2
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The equation of the circle whose centre lies on x-axis at a distance h from the origin and radius is a, is given bya)x2 + y2- 2hx + h2 = a2b)x2 + y2 - 2hx-2ky +h2 = 0c)x2 + y2 - 2hx- 2ky+k2= 0d)none of the aboveCorrect answer is option 'A'. Can you explain this answer?
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