The number of common tangents to two circles \[{{x}^{2}}+{{y}^{2}}=4\]and \[{{x}^{2}}-{{y}^{2}}-8x+12=0\]is [EAMCET 1990]

The number of common tangents to two circles \[{{x}^{2}}+{{y}^{2}}=4\]

1.	The number of common tangents to two circles \[{{x}^{2}}+{{y}^{2}}=4\]and \[{{x}^{2}}-{{y}^{2}}-8x+12=0\]is [EAMCET 1990]
A.	1
B.	2
C.	3
D.	4
Answer» D. 4

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The number of common tangents to two circles \[{{x}^{2}}+{{y}^{2}}=4\]and \[{{x}^{2}}-{{y}^{2}}-8x+12=0\]is [EAMCET 1990]

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