Questions
The greatest number of points of intersection of n circles and m straight lines is
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a
2mn+mC2
b
12m(m−1)+n(2m+n−1)
c
mC2+2 nC2
d
none of these
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Correct option is B
The number of points of intersections= nC2(2)+ mC2(1)+ nC1 mC1(2)=n(n−1)+12m(m−1)+2mnSimilar Questions
There arepoints in a plane, no two of which are in a straight line except 4, all of which are in a straight line. The number of triangles that can be formed by using these points is
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