11sum1 pls do this
2 points P(a.0) amd Q(-a,0) are given and R is variable point on 1 side of the line PQ such that <RPQ - <RQP is a positive constant 2θ.Show that the locus of R is ---
x2-y2±2xy cot 2θ - a2 =0
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2 Answers
1357take R as (h,k)
given
tan-1(k/(h-a))-tan-1(k/(h+a))=2θ
take tan both sides and solve