From the point (15, 12) three normals are drawn to the parabola 
then centroid of triangle formed by three co-normals points is
a)
b)
(4, 0)
c)
d)
(6, 0)
From the point (15, 12) three normals are drawn to the parabola then centroid of triangle formed by three co-normals points is
a)
b)
(4, 0)
c)
d)
(6, 0)
Question ID - 55803 | SaraNextGen Top Answer
From the point (15, 12) three normals are drawn to the parabola then centroid of triangle formed by three co-normals points is
a)
b)
(4, 0)
c)
d)
(6, 0)
|
From the point (15, 12) three normals are drawn to the parabola |
|||||||
|
a) |
|
b) |
(4, 0) |
c) |
|
d) |
(6, 0) |
1 Answer
127 votes
Answer Key / Explanation : (c) -
(c)
The equation of any normal be 
Since it passes through the points (15, 12)
One root is 
, then
Therefore, the co-normal points are (
16, 8)
Therefore, centroid is 
127 votes
Answer Link
127