Q 1601112928.     Consider the two circles `(x- 1)^(2) + (y - 3)^( 2) = r^(2)` and

` x^(2) + y ^(2) -8x+ 2y + 8 = 0`

What is the distance between the centres of the two
circles?

NDA 2016 Paper 1
A

5 units

B

6 units

C

8 units

D

10 units

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