Sets, Relations and Functions
Say true or false. The collection of rich people in your district is an example of a set.
State whether each of the following sets is a finite set or an infinite set: $$\left \{x : x = 3n - 2, n \in W, n \leq 8 \right \}$$
$$\left \{x : x = 3n - 2, n \in W, n \leq 8 \right \}$$
Substituting the value of $$ n= \left(0, 1, 2, 3, 4, 5, 6, 7, 8 \right)$$ we get
$$ = \left \{-2, 1, 4, 7, 10, 13, 16, 18, 22 \right \}$$
It is a finite set.
Say true or false. The collection of rich people in your district is an example of a set.
Say true or false: The sets $$A = \{b, c, d, e \}$$ and $$B = \{x : x$$ $$\text {is a letter in the word "master"} \}$$ are joint.
The sets A = {4. 5, 6} and B = {$$x$$ : $$x^2 - 5x - 6 = 0$$} disjoint. Enter 1 if true, or 0 if false.
Let $$A$$ and $$B$$ be two sets such that $$A\cup B=A$$, then $$A\cap B$$ is equal to
State whether each of the following sets is a finite set or an infinite set: The set of integers less than 10.
State whether each of the following sets is a finite set or an infinite set: The set of whole numbers less than 12.
State whether each of the following sets is a finite set or an infinite set: $$\left \{x : x = 3n - 2, n \in Z, n \leq 8 \right \}$$
State whether each of the following sets is a finite set or an infinite set: $$\left \{x : x = \dfrac{n - 2} {n + 1}, n \in W, n \right )$$
$$n(A) = N(B) = >A = B )$$
State, whether the given set is infinite or finite: $$\{7, 14, 21, …….., 2401\}$$