यदि \(U={1,2,\ldots,54}\), \(A={x:x\in U,6\mid x}\), \(B={x:x\in U,9\mid x}\), तो (n\(A'\cap B\)) क्या है?
If \(U={1,2,\ldots,54}\), \(A={x:x\in U,6\mid x}\), and \(B={x:x\in U,9\mid x}\), what is (n\(A'\cap B\))?
Explanation opens after your attempt
A. (3)
Simple Explanation
(B) में (9,18,27,36,45,54) हैं। इनमें (18,36,54) (6) से विभाज्य हैं, इसलिए \(A'\cap B\) में (9,27,45) यानी (3) सदस्य हैं। / (B) contains (9,18,27,36,45,54). Among them (18,36,54) are divisible by (6), so \(A'\cap B\) has (9,27,45), that is (3) elements.
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