यदि \(A=\{1,2,3,4\}\) है तो (P(A)) में दो अवयवों वाले कितने समुच्चय होंगे?
If \(A=\{1,2,3,4\}\) then how many two element sets will be in (P(A))?
Explanation opens after your attempt
Correct Answer
B. (6)
Concept
(P(A)) contains all subsets of (A), and the number of two element subsets is \(\binom{4}{2}=6\). The question is not asking the total size of the power set.
Why this answer is correct
The correct answer is B. (6). (P(A)) contains all subsets of (A), and the number of two element subsets is \(\binom{4}{2}=6\). The question is not asking the total size of the power set.
Exam Tip
(P(A)) में (A) के सभी उपसमुच्चय होते हैं और दो अवयव चुनने की संख्या \(\binom{4}{2}=6\) है। यहां पूरी शक्ति समुच्चय की संख्या नहीं पूछी गई है।
Login to save your score, XP, coins and progress.