A) \[(6a,\ -9a)\]
B) \[(-9a,\ 6a)\]
C) \[(-6a,\ 9a)\]
D) \[(9a,\ -6a)\]
Correct Answer: D
Solution :
If normal drawn to point \[(at_{1}^{2},\,2a{{t}_{1}})\] of a parabola \[{{y}^{2}}=4ax\] meets at point \[(at_{2}^{2},\,2a{{t}_{2}})\] of same parabola then, \[{{t}_{2}}=-{{t}_{1}}-2/{{t}_{1}}\]You need to login to perform this action.
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