Question

If the distance of the point (a, b) from (-3,

0) are 4 each, find a and b.​

Answer 1

Answer:

Distance b/w 2pts (x

1

,y

1

) and (x

2

,y

2

) is

d=

(x

2

−x

1

)

2

+(y

2

−y

1

)

2

Distance between points (a,b) and (b,a) is

d=

(b−a)

2

+(a−b)

2

d

2

=(b−a)

2

+(a−b)

2

d

2

=(a−b)

2

+(a−b)

2

d

2

=2(a−b)

2

d

2

=2×4

2

d

2

=32

d=4

2

units