A) parabola
B) ellipse
C) hyperbola
D) none of these
Correct Answer: B
Solution :
Key Idea: We know, the sum of focal distance of any point on the ellipse, always equal to the length of the major axis. \[\therefore \]If \[A\] and \[B\] are two fixed point and \[P\] is any variable point, such that \[PA+PB=4\], then the locus of \[P\] is an ellipse.You need to login to perform this action.
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