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# CBSE Class 11-science Answered

6
Asked by gauravmore604 | 04 Nov, 2019, 03:31: PM
Expert Answer
(x + 2)2 + (y - 3)2 = 4
Let the coordinate be M(h, k)
B is the midpoint of A and M
B(h/2, k + 3/2)
As AB is the chord of a circle.
x2 + 4x + (y - 3)2 = 0
B must satisfy above equation
h2/4 + 4h/2 + [1/2 (k + 3) - 3]2 = 0
h2 + k2 + 8h - 6k + 9 = 0
x2 + y2 + 8x - 6y + 9 = 0

If you simplify option B we get the same equation as above.
Answered by Sneha shidid | 05 Nov, 2019, 09:26: AM

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