यदि \(A=\{1,2,3,4,5\}\), तो कम से कम (4) सदस्य वाले उपसमुच्चयों की संख्या कितनी है?
If \(A=\{1,2,3,4,5\}\), how many subsets have at least (4) elements?
Explanation opens after your attempt
B. (6)
Concept
There are \(\binom{5}{4}=5\) four-element subsets and (1) five-element subset. Total is (5+1=6).
Why this answer is correct
The correct answer is B. (6). There are \(\binom{5}{4}=5\) four-element subsets and (1) five-element subset. Total is (5+1=6).
Exam Tip
चार-सदस्यीय उपसमुच्चय \(\binom{5}{4}=5\) और पांच-सदस्यीय (1) है। कुल (5+1=6) है।
Login to save your score, XP, coins and progress.
