Q.If a mapping d: R2 × R2 → R be defined by d (x,y) = |x1 –y1| + |x2 – y2|, where x = (x1, x2), y = (y1,y2)∈R2, then which of the following is true?
Correct answer: d is a metric on R2
Read, practise, and share this question using its permanent link.