There are two circles whose equations are x ^ { 2 } + y ^ { 2 } = 9 and x ^ { 2 } + y ^ { 2 } - 8 x - 6 y + n ^ { 2 } = 0 , n \in Z . If the two circles have exactly two common tangents then the number of possible values of n is

AP and TS EAMCET Engineering Model Paper 11

Question : 63 of 160

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There are two circles whose equations are x2+y2=9 and x2+y2−8x−6y+n2=0 , n∈Z . If the two circles have exactly two common tangents then the number of possible values of n is

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