malakabdulah10431 malakabdulah10431
  • 23-01-2024
  • Physics
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If a circle C passing through the point (4, 0) touches the circle x²+y²+4x-6y=12 externally at a point (1, - 1) then the radius C is_____

O √57
O 4
O 2√5
O 5

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