🛠️ JEE➗ Maths

Let \(x=9\) be a directrix of an ellipse \(E\), whose centre is at the origin and eccentricity is \(\frac{1}{3}\). Let \…

Q1

Let \(x=9\) be a directrix of an ellipse \(E\), whose centre is at the origin and eccentricity is \(\frac{1}{3}\). Let \(P(\alpha ,0),\alpha >0\), be a focus of \(E\) and \(A B\) be a chord passing through \(P\). Then the locus of the mid-point of \(AB\) is:

[JEE Main 2026, 6 Apr (Shift 2)]

a

\(9{y}^{2}=8x(1-x)\)

b

\(3{y}^{2}=4x(1-x)\)

c

\(9{y}^{2}=8x(x-1)\)

d

\(3{y}^{2}=4x(x-1)\)

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