यदि \(A=\{1,2,3,4,5\}\) है तो (A) के तीन या अधिक अवयवों वाले उपसमुच्चयों की संख्या क्या है?
If \(A=\{1,2,3,4,5\}\), how many subsets of (A) have three or more elements?
Explanation opens after your attempt
Correct Answer
B. (16)
Concept
The number is \(\binom{5}{3}+\binom{5}{4}+\binom{5}{5}=16\). For size based counting, add the combinations.
Why this answer is correct
The correct answer is B. (16). The number is \(\binom{5}{3}+\binom{5}{4}+\binom{5}{5}=16\). For size based counting, add the combinations.
Exam Tip
तीन या अधिक अवयवों की संख्या \(\binom{5}{3}+\binom{5}{4}+\binom{5}{5}=16\) है। आकार आधारित गिनती में संयोजन जोड़ें।
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