यदि \(A=\{p,q,r\}\), तो (A) के एक अवयव वाले उपसमुच्चय कितने हैं?
If \(A=\{p,q,r\}\), how many one-element subsets does (A) have?
Explanation opens after your attempt
Correct Answer
C. (3)
Concept
One-element subsets are formed by taking one element at a time.
Why this answer is correct
({p},{q},{r}) are the three such subsets.
Exam Tip
A set with (n) elements has (n) one-element subsets. चरण 1: एक अवयव वाले उपसमुच्चय एक-एक अवयव से बनते हैं। चरण 2: ({p},{q},{r}) तीन ऐसे उपसमुच्चय हैं। चरण 3: किसी समुच्चय में (n) अवयव हों तो एक अवयव वाले उपसमुच्चय (n) होते हैं।
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