Question

The equation of one the line represented by the equation x² + 2xy cot θ – y² = 0 is …

(a) x – y cot θ = 0 

(b) x + y tan θ = 0 

(c) x cos θ + y(sin θ + 1) = 0 

(d) x sin θ + y(cos θ + 1) = 0

Answer 1

(d) x sin θ + y(cos θ + 1) = 0