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Elements of a Set

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Question

Write the cardinal number of each of the following sets:

$F = {x : x \in z a n d - 2 < x \leq 5} .$

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Solution

Step : Finding the cardinal number of the given set

$Given: F = {x : x \in z a n d - 2 < x \leq 5}$

Integers from -1 to 5 are -1, 0, 1, 2, 3, 4 and 5.

∴ The total elements in set F is 7.

We know that the cardinal number of a set is the number of elements in it.
Hence, the cardinal number of set F is 7.

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Elements of a Set

Standard VI Mathematics

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