Circle And System Of Circles Question 31
Question: If the circle $ {{(x-h)}^{2}}+{{(y-k)}^{2}}=r^{2} $ touches the curve $ y=x^{2}+1 $ at a point (1, 2), then the possible locations of the points (h, k) are given by
[AMU 2000]
Options:
A) $ y=mx\pm \sqrt{1+m^{2}} $
B) $ y=mx\pm a\sqrt{1+m^{2}} $
C) $ x=my\pm a\sqrt{1+m^{2}} $
D) None of these
Show Answer
Answer:
Correct Answer: B
Solution:
It is obvious.
BETA
