AP EAMCET202022 Sep 2020Evening ShiftMathematicsStraight LinesActual
The equation (x-2)^2+y^2 + (x+2)^2+y^2 =4 , where -2 < x < 2 , represents a
Options
- ACircle
- BPair of lines
- CParabola
- DLine segment
Correct answer
D. Line segment
Step-by-step solution
Given, (x-2)^2+y^2 + (x+2)^2+y^2 =4 According above equation Let aligned P & =(x, y) A & =(2,0) B & =(-2,0) aligned From Eq. (i) P A+P B=A B Eq. A, P, B are collinear Eq. (i) represents a line segment Hence, option (4) is correct.