NTA Abhyas JEE Main2020MathematicsParabolaPractice
The area of the quadrilateral formed by the tangents and normals at the extremities of the latus rectum of the parabola y 2 - 4 y + 4 + 12 x = 0 is
Options
- A36 s q . u n i t s
- B72 s q . u n i t s
- C144 s q . u n i t s
- D96 s q . u n i t s
Correct answer
B. 72 s q . u n i t s
Step-by-step solution
y - 2 2 = - 12 x The quadrilateral is a square with diagonal length = 12 ∴ Area = 1 2 × 12 × 12 = 72 sq. units