यदि \(A=\{p,q,r,s,t\}\), \(B=\{q,s,u\}\) और \(C=\{r,s,t,u\}\) हैं, तो (A\setminus\(B\cap C\)) क्या है?
If \(A=\{p,q,r,s,t\}\), \(B=\{q,s,u\}\), and \(C=\{r,s,t,u\}\), what is (A\setminus\(B\cap C\))?
Explanation opens after your attempt
Correct Answer
A. ( {p,q,r,t} )
Concept
\(B\cap C={s,u}\), but only (s) is removed from (A). Thus (A\setminus\(B\cap C\)={p,q,r,t}).
Why this answer is correct
The correct answer is A. ( {p,q,r,t} ). \(B\cap C={s,u}\), but only (s) is removed from (A). Thus (A\setminus\(B\cap C\)={p,q,r,t}).
Exam Tip
\(B\cap C={s,u}\), लेकिन (A) में केवल (s) हटेगा। इसलिए (A\setminus\(B\cap C\)={p,q,r,t})।
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