Question

Find the locus of a point P which moves so that (PA)^2 - (PB)^2=5

Answer 1

anything else is given ??
say P have co-ordinates (x,y). Then you may take, A or B as origin,
and apply distance formula to get PA and PB....

Answer 2

That is all that is given

Answer 3

so how would you do this... im still not so sure

Answer 4

hartnn mean that take P(x,y) n i think u r provided wid coordinates of A and B apply distance formula to get equation of locus of the point P

Answer 5

ok thanks

Answer 6

you know distance formula, right ?
Distance between points (x1,y1) and (x2,y2) is
\(\huge d=\sqrt{(x_1-x_2)^2+(y_1-y_2)^2}\)

Answer 7

fr ur info differnce of distance between twp points is an hyperbola m i ryt hartnn?

Answer 8

yes :)