Question

Let sets A and B be defined as follows.A is the set of integers greater than -10 and less than -1B={d, h, m, x, y}(a) Find the cardinalities of A and B.(b) Select true or false.-2 EA-17 € Ay=BVE BTrueOOOFalseOOOO

Answer 1

Given the question in the image on the question tab;

`\begin{gathered} A=\lbrace-9,\text{ -8, -7, -6, -5, -4, -3, -2}\rbrace \\ B=\lbrace\text{d, h, m, x, y}\rbrace \end{gathered}`
`\begin{gathered} (a) \\ Cardinality\text{ of a set is simply the number of elements in the set.} \\ n(A)=8 \\ n(B)=5 \end{gathered}`
`\begin{gathered} (b) \\ \end{gathered}`