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Consider the circles C(1)-=x^(2)+y^(2)-2...

Consider the circles `C_(1)-=x^(2)+y^(2)-2x-4y-4=0andC_(2)-=x^(2)+y^(2)+2x+4y+4=0` and the line `L-=x+2y+2=0` then

A

L is the radical axis of `C_(1)andC_(2)`

B

L is the common tangent of `C_(1)andC_(2)`

C

L is the common chord of `C_(1)andC_(2)`

D

L is perpendicular to the line joining centres of `C_(1)andC_(2)`

Text Solution

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The correct Answer is:
A, C, D
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