Question
Question: Difference between maximum & minimum distance of point (2, – 7) from x<sup>2</sup> + y<sup>2</sup> –...
Difference between maximum & minimum distance of point (2, – 7) from x2 + y2 – 14x – 10y – 151 = 0 is
A
28
B
30
C
24
D
26
Answer
26
Explanation
Solution
Max. distance = l + r
Min. distance = l – r
l is distance between point & centre