यदि (n(U)=32), (n\(A\cap B\)=9), तो (\(A\cap B\)') में कितने अवयव हैं?
If (n(U)=32) and (n\(A\cap B\)=9), how many elements are in (\(A\cap B\)')?
Explanation opens after your attempt
B. (23)
Concept
(\(A\cap B\)') contains all elements of (U) except the common part, so (32-9=23). For complement, subtract from (U).
Why this answer is correct
The correct answer is B. (23). (\(A\cap B\)') contains all elements of (U) except the common part, so (32-9=23). For complement, subtract from (U).
Exam Tip
(\(A\cap B\)') में साझा भाग को छोड़कर (U) के सभी अवयव आते हैं, इसलिए (32-9=23)। पूरक के लिए (U) से घटाएं।
Login to save your score, XP, coins and progress.
