What is a complement in maths?

Eg what would you put for the question:

What is the complement of #16# to #20# ?

Thank you so much for the help if you do!

1 Answer
Jul 11, 2018

#1-5, 6-10, 11-15, 16-20...#

Explanation:

The complement of #16 to 20#

Now the difference between the range is #4#

A complement is a unique value that can be used to complement another value if not used, they have similarities..

Hence a similar or complement range is #1-5, 6-10, 11-15...# and so on..