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TS EAMCET · Maths · Straight Lines

Let A=0,4 and B=2cosθ,2sinθ, for some 0<θ<π2. Let P divide the line segment AB in the ratio 2:3 internally. The locus of P is

  1. A parabola
  2. B ellipse
  3. C circle
  4. D hyperbola
Verified Solution

Answer & Solution

Correct Answer

(C) circle

Step-by-step Solution

Detailed explanation

By using section formula: mx2+nx1m+n,my2+ny1m+n P4cosθ+05,4sinθ+125→h,k ⇒cosθ=5h4, sinθ=5k-124 ⇒cos2θ+sin2θ=1 ⇒5h42+5k-1242=1 ⇒5x2+5y-122=16 (This is the equation of circle)