यदि (n\(A\setminus B\)=17) और (n\(A\cap B\)=11) है, तो (n(A)) क्या होगा?
If (n\(A\setminus B\)=17) and (n\(A\cap B\)=11), what is (n(A))?
Explanation opens after your attempt
A. (28)
Concept
Set (A) is made of two parts, \(A\setminus B\) and \(A\cap B\). Therefore (n(A)=17+11=28).
Why this answer is correct
The correct answer is A. (28). Set (A) is made of two parts, \(A\setminus B\) and \(A\cap B\). Therefore (n(A)=17+11=28).
Exam Tip
समुच्चय (A) दो भागों \(A\setminus B\) और \(A\cap B\) से बनता है। इसलिए (n(A)=17+11=28)।
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