Question

R is the set of natural numbers that are less than 2

Answer 1

in roster form and in set-builder notation

Answer 2

make a list of natrual numbers; then make a list of all that are less than 2

Answer 3

roster form is just naming them one by one R = {a,b,c,d,e,f,g,....}

setbuilder uses the inequaility notations, and set terminology ...

R = {x : x in N and x < 2}, but there are a few variations of it that come about from text to text

Answer 4

ظفاحادخ...