Let A≡(9,6), B(4,-4) be two points on parabola Y2=4x and P(t2,2t), tε[-2,3] be a variable point on it such that area of ΔPAB is maximum, then point P will be
A) (4,4) B) (3,-2√3) C) (4,1) D) (1/4,1)
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2 Answers
Avinav Prakash
·2010-03-01 07:33:58
ans is .d
use determinant to find the area of traiangle in terms of t
then use derivatives......
UTTARA
·2010-03-01 07:40:02
U're ans is correct
I got the prob
But wanted to confirm the ans so i posted