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JEE Advance - Mathematics (1994 - No. 31)

The circles $${x^2} + {y^2} - 10x + 16 = 0$$ and $${x^2} + {y^2} = {r^2}$$ intersect each other in two distinct points if
r < 2
r > 8
2 < r < 8
$$2 \le r \le 8$$

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