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6 questions
The meaning of the letter Z in set theory is
Natural Number
Integer Number
Irrational Number
Rational Number
The meaning of the letter N in set theory is
Natural Number
Rational Number
Real Number
Irrational Number
An example of an irrational number is
$\pi$
2
$\frac{5}{2}$
-6
An example of an integer number is
0
$\pi$
$\sqrt{2}$
$\frac{5}{2}$
A = {1,2} and B = {2,3} The union of set A and B is:
$A\cup B$ ={1,3}
$A\cup B$ ={1,2,3}
$A\cup B$ ={2,3}
$A\cup B$ ={1}
A = {1,2} and B = {2,3} The intersection of set A and B is:
$A\cap B=\left\{2\right\}$
$A\cap B=\left\{1,2,3\right\}$
$A\cap B=\left\{1\right\}$
$A\cap B=\left\{3\right\}$
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