Question

Find n(A) for the following set. A=the set of integers between - 25 and 25 n(A) =

Answer 1

The value of n(A) is 51.

Step-by-step explanation:

Set A contains all integers between -25 and 25, inclusive. To find the cardinality (number of elements) of set A, we need to count the number of integers in this range.

Here's how we can calculate n(A):

Calculate the absolute difference:

Upper limit - Lower limit = 25 - (-25) = 50

Add 1:

50 + 1 = 51

We add 1 because we need to count both the lower and upper limits as elements of the set.

Therefore, n(A) = 51.