1a,d
The tangent PT and normal PN to the parabola y2=4ax at a point P on it meet its axis at points T and N respectively.
The locus of the centroid of the traingle PTN is a parabola whose
A) Vertex is (2a/3,0)
B) Directrix is x=0
C) Latus rectum is 2a/3
D) focus is (a,0)
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6 Answers
11yup dats rite..........
vertex : (2a/3 , 0)
directrix : x = a/3
latus rectum = 4a/3
focus : (a , 0)
