\(यदि (U={1,2,3,4,5,6,7,8,9,10}) और (A={x:x\in U,\ x\) सम संख्या है}), तो (P(A')) के कितने अवयवों में ठीक (2) अवयव होंगे?
\(If (U={1,2,3,4,5,6,7,8,9,10}) and (A={x:x\in U,\ x\) is an even number}), then how many elements of (P(A')) will have exactly (2) elements?
Explanation opens after your attempt
B. (10)
Simple Explanation
(A'={1,3,5,7,9}), इसलिए ठीक (2) अवयव वाले उपसमुच्चय \(\binom{5}{2}=10\) होंगे। पहले पूरक समुच्चय निकालें फिर संयोजन लगाएं। / (A'={1,3,5,7,9}), so the subsets with exactly (2) elements are \(\binom{5}{2}=10\). First find the complement set and then use combinations.
Login to save your score, XP, coins and progress.
QR scan karne par isi question ka correct answer aur explanation khula hua milega.
Open answer link