defence exam Agniveer Vayu Group X & XY Mock Test 01/2026 Mathematics Parabola, Ellipse and Hyperbola Parabola
The condition that the parabolas y² = 4px and y² = 4q(x - r) have a common normal other than the x-axis (p, q, r being distinct positive real numbers) is?
1
\(\frac{q}{p-r } < 2 \)
2
\(\frac{q}{p-r}>4 \)
3
\(\frac{q}{p-r}< 4 \)
4
\(\frac{q}{p-r}> 2 \)