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Questions  

The radical axis of two circles having centres at C1 and C 2 and radii r1 and r2 is neither intersecting nor touching any of the circles, if 

a
C1C2=0
b
0
c
C1C2=r1−r2
d
r1−r2

detailed solution

Correct option is B

The radical axis of two circles will neither intersect nor touch any of the given circles in the following cases:  (i) When C1C2>r1+r2                  (ii) When 0

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