The true statement about R ⊂ A is (a) yes, because all the elements of set A are in set R
The sets are given as:
U = {x | x is a real number}
A = {x | x is an odd integer}
R = {x | x = 3, 7, 11, 27}
From the given sets, we can see that the elements in set R are odd numbers
This means that the set R is a subset of set A
This is represented as:
R ⊂ A
Hence, the true statement about R ⊂ A is (a) yes, because all the elements of set A are in set R
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