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CBSE Class 11-science Answered

Coordinates of midpoint of chord are?
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Asked by dineshchem108 | 20 Sep, 2018, 08:53: AM
answered-by-expert Expert Answer
First we need to find coordinates of points of intersection of the line and circle.
2x - 5y + 18 = 0
x = (5y - 18)/2
Put it in the equation of a circle
x2 + y2 - 6x + 2y - 54 = 0
we get 29y2 - 232y + 324 = 0
find y using formula for quadratic equation and then find x.
Also find midpoint of chord.
Answered by Sneha shidid | 20 Sep, 2018, 10:59: AM

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