यदि (|A|=7), तो (\mathcal{P}(A)) के कितने तत्वों में कम से कम (6) तत्व होंगे?
If (|A|=7), how many elements of (\mathcal{P}(A)) have at least (6) elements?
Explanation opens after your attempt
Correct Answer
B. (8)
Concept
At least (6) elements means (6) or (7) elements. The count is \(\binom{7}{6}+\binom{7}{7}=8\).
Why this answer is correct
The correct answer is B. (8). At least (6) elements means (6) or (7) elements. The count is \(\binom{7}{6}+\binom{7}{7}=8\).
Exam Tip
कम से कम (6) तत्वों का अर्थ (6) या (7) तत्व है। संख्या \(\binom{7}{6}+\binom{7}{7}=8\) है।
Login to save your score, XP, coins and progress.