1)

Consider the parabolu y2=8x. Let 1 be the area of the triangle formed by the endpoints of its latus rectum and the point  P(12,2) on the parabola and 2 be the area of the triangle formed by drawing tangents at P and at the end points of the latusrectum. Then 12 is 


A) 2

B) 3

C) 4

D) 5

Answer:

Option A

Explanation:

As, we know area of triangle formed by three points on the parabola is twice the area of the triangle formed by corresponding tangents i.e, area of PQR=2 area   of T1T2T3

 

15122021678_f2.PNG 

 1=22 or 12=2