Question

I need help understanding this problem R={x:o 13 years ago

Answer 1

first of all its a set containing some values

these values are defined by the symbols given in there

Answer 2

consider the numbers are represented by x

the value of x is more than zero but less than four

so any number that is more than zero but less than four is a member of the set

but since it says x belongs to "W" , it can have only whole numbers not decimal fractions

so u get

{1,2,3}