Question

What are the maximum and minimum possible values for \\frac{|x+y|}{|x|+|y|}\\) + \\frac{|z+y|}{|z|+|y|}\\)\\frac{|z+y|}{|z|+|y|}\\)?
3 and 1
3 and 0
4 and 0
4 and 1

Answer 1

Wrong question sorry can't help