Eduprobe
Question:
If chord PQ subtends an angle θ at the vertex of y² = 4ax, then tan θ = ?
3√5
23√7
23√5
3√7
Solution:
Angle made by chord PQ at vertex (0,0) is given by tan θ = |2t₁ + 2t|/|1 - t₁t| = 2(1 + t₁t)/|1 - t₁t| = 3√5
3√5
23√7
23√5
3√7
Angle made by chord PQ at vertex (0,0) is given by tan θ = |2t₁ + 2t|/|1 - t₁t| = 2(1 + t₁t)/|1 - t₁t| = 3√5