Question

Vedanta Excel In Opt. Mathematics - Book 9

8.
Find the locus of a point which moves so that

Its distance from (1, 2) and (2, -3) are equal.​

Answer 1

(1 ,2) (2,-3)

(x1,y1) (x2, y2)

Distance formual

√(x2-x1)^+(y2-y1)^

= √(2-1)^+(-3-2)^

= √(1)^+(-5)^ [here square root and

square get cancelled]

= (1)+(-5)

= 1-5

= - 4