A) \[(0,\ -2a)\ \text{and}\ y=2a\]
B) \[(0,\ 2a)\ \text{and}\ y=-2a\]
C) \[(2a,\ 0)\ \text{and}\ x=-2a\]
D) \[(-2a,\ 0)\ \text{and}\ x=2a\]
Correct Answer: A
Solution :
Given equation is \[{{x}^{2}}=-8\,ay.\] Here \[A=2a\] Focus of parabola \[(0,\,-A)\] i.e. (0, ? 2a) Directrix y = A i.e., y = 2a.
You need to login to perform this action.
You will be redirected in
3 sec
