Parabola
General
Grade 11
Question:
The straight line joining any point P on the parabola <span class="math-inline">\(y^2=4ax\)</span> to the vertex and perpendicular from the focus to the tangent at P, intersect at R, then the equation of the locus of R is
x^2 + 2y^2 - ax = 0
2x^2 + y^2 - 2ax = 0
2x^2 + 2y^2 - ay = 0
2x^2 + y^2 - 2ay = 0
Step-by-Step Solution
Key Concept: General
\sqrt{3}/2
Correct Answer: \frac{\sqrt{3}}{2}