Question

From a point P perpendiculars PM and PN are drawn to curve $3x^2+4xy+y^2=0$ to meet at M and N. If MN$=2\sqrt{5}$, then?

• A. Locus of P is pair of lines
• B. Locus of P is circle
• C. Area bounded by locus of P and x-axis above the x-axis is $50\pi$
• D. Distance of any tangent to locus of P from origin is $10$ unit

Answer 1

Answer: (B)