CUET PG 2024 Mathematics PYQ — An equilateral triangle is inscribed in a parabola y 2 = 8x whose… | Mathem Solvex | Mathem Solvex
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CUET PG 2024 — Mathematics PYQ
CUET PG | Mathematics | 2024
An equilateraltriangle is inscribed in a parabola y2= 8x whose one vertex is at the vertex of the parabola then the length of the side of the triangle is:
Choose the correct answer:
A.
83units
B.
163units
Correct Answer:
163units
Explanation
Vertex of parabola
y2=8xis (0,0)
∵Δ is equilateral
∴Exis of parabola
Besect angle
So the above angle is 30 f side intersect the parabola at (2t2,4t),tan(30)=2t24t
t=23
### {point become (24,8,3) Length of side = 576+192ˉ=768
=163
Explanation
Vertex of parabola
y2=8xis (0,0)
∵Δ is equilateral
∴Exis of parabola
Besect angle
So the above angle is 30 f side intersect the parabola at (2t2,4t),tan(30)=2t24t
t=23
### {point become (24,8,3) Length of side = 576+192ˉ=768