CBSE Class 11-science Answered
The centers of the circles touching both the coordinate axes lies on the line
x – y = 0 or x + y = 0 according to the quadrant in which the circle lies.
Based on this data answer the following 2 questions.
A) If the difference between the radii of the circles passing through (a, b) and touching the axes is c>0 and a, b > 0 then the least value of a + b is
B) If one of the points of intersection of the two circles touching the axes is (p,q) then the length of the common chord is
Asked by Sunil Soni | 10 Aug, 2016, 07:07: PM
Expert Answer
As the circles touches the axes so, the point of intersection will always lie on axis.
So either x coordinate or y coordinate will be zero.
And the length of common cord will also bezero.
Only option (4) satisfies the above two conditions.
Please post one query at a time.
Answered by Vijaykumar Wani | 12 Aug, 2016, 05:34: PM
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