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Q.

The point of the intersection of the two tangents to the ellipse 2x2 + 3y2 = 6 at the end of latus rectum is

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a

(3,0)

b

(7/2,0)

c

(4,0)

d

(9/2,0)

answer is A.

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Detailed Solution

e= eccentricity =1ba2e=13

Ends of latus rectum of the ellipse are ae,±b2a=1,±2/3

Equation of tangents are

2x1+3yy1=62x+23y=62xx2+3yy2=62x23y=6

Point of intersection of tangents at the ends of latus rectum is

z=ae,0=(3,0)

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