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Two points P(a,0) and Q(-a,0) are given, R is a variable on one side of the line PQ such that `/_RPQ-/_RQP` is a positive constant `2alpha`. FInd the locus of point R.

A

`x^(2)-y^(2)+2xycot 2 alpha-a^(2)=0`

B

`x^(2)+y^(2)+2xycot 2 alpha-a^(2)=0`

C

`x^(2)+y^(2)+2xy cot 2 alpha +a^(2)=0`

D

None of the above

Text Solution

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The correct Answer is:
A
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