यदि (n(U)=58) और (n\(A\cup B\)=41), तो वेन आरेख में न (A) न (B) वाले क्षेत्र में कितने अवयव होंगे?
If (n(U)=58) and (n\(A\cup B\)=41), how many elements will be in the region neither in (A) nor in (B) in the Venn diagram?
Explanation opens after your attempt
A. (17)
Concept
The region neither in (A) nor in (B) is (\(A\cup B\)'), so the number is (58-41=17). It is outside both circles but inside (U).
Why this answer is correct
The correct answer is A. (17). The region neither in (A) nor in (B) is (\(A\cup B\)'), so the number is (58-41=17). It is outside both circles but inside (U).
Exam Tip
न (A) न (B) वाला क्षेत्र (\(A\cup B\)') है, इसलिए संख्या (58-41=17) होगी। यह दोनों वृत्तों के बाहर लेकिन (U) के अंदर का भाग है।
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