यदि \(A\subseteq B\) और \(C\cap B=\varnothing\) है, तो (\(A\cup C\)\cap B) किसके बराबर है?
If \(A\subseteq B\) and \(C\cap B=\varnothing\), then (\(A\cup C\)\cap B) is equal to which set?
Explanation opens after your attempt
Correct Answer
A. (A)
Concept
Since \(A\subseteq B\), all of (A) lies in (B), and (C) has no common element with (B). Hence only (A) remains in the intersection.
Why this answer is correct
The correct answer is A. (A). Since \(A\subseteq B\), all of (A) lies in (B), and (C) has no common element with (B). Hence only (A) remains in the intersection.
Exam Tip
\(A\subseteq B\) होने से (A) का पूरा भाग (B) में रहता है और (C) का (B) से कोई सामान्य तत्व नहीं है। इसलिए प्रतिच्छेद में केवल (A) बचेगा।
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