Question

A is the set of integers greater than or equal to -9 and less than or equal -2
B = {-30, -27, 20, 24, 28}
a) Find the cardinalities of A and B.
n(A)=
n(B) =

Answer 1

Answer:

The cardinality Of Set A= 8, Set B = 5

SET :

an organized collection of objects

Cardinality :

It is defined as how many elements make in a set or other grouping.

Step1: Integers greater than or equal to -9 and less than or equal to -2 are

      =   -9,-8,-7,-6,-5,-4,-3,-2

Step 2: Form a set using given elements, we have

Set A = {-9,-8,-7,-6,-5,-4,-3,-2}

Step 3: Count the no. of elements

we have, no. of elements is 8.

For given Set B = {-30, -27, 20, 24, 28}

we have, no. of elements is 5.

Learn more about sets and cardinality: https://brainly.com/question/17023310

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