Length of the common chord of the circles \[{{x}^{2}}+{{y}^{2}}+5x+7y+9=0\]and \[{{x}^{2}}+{{y}^{2}}+7x+5y+9=0\]is [Kurukshetra CEE 1996]

Length of the common chord of the circles \[{{x}^{2}}+{{y}^{2}}+5x+7y+

1.	Length of the common chord of the circles \[{{x}^{2}}+{{y}^{2}}+5x+7y+9=0\]and \[{{x}^{2}}+{{y}^{2}}+7x+5y+9=0\]is [Kurukshetra CEE 1996]
A.	9
B.	8
C.	7
D.	6
Answer» E.

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Length of the common chord of the circles \[{{x}^{2}}+{{y}^{2}}+5x+7y+9=0\]and \[{{x}^{2}}+{{y}^{2}}+7x+5y+9=0\]is [Kurukshetra CEE 1996]

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