Class 9th math 3.1 solution english PCTB

Question 3: Write two proper subsets of each of the following sets:

\((v)\) \(\;\) \(\{x|x\in Q\land 0< x\leq 2\} \)

Solution:

Two Proper Subsets are:

\( (i) \; \) \(\{1\}\)

\( (ii) \; \) \(\{2\}\)


Explanation:

The set contains all rational numbers greater than \(0\) and less than or equal to \(2\).

A proper subset of a set is a subset that is not equal to the original set.

The subsets \(\{1\}\) and \(\{2\}\) both contain some (but not all) elements of the original set.

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