Question

If the points A, B, C and D are respected by the complex numbers 4+i, 1+6i, -4+3i and -1-2i respectively, then show that ABCD is a square(use distance formula).

Answer 1

Answer:

let

d(A,B) = √ (x2 − x1)2 + (y2 − y1)2 

please solve yourself

or you will not learn