यदि \(U={1,2,\ldots,20}\), \(A={x\in U:2\mid x}\) और \(B={x\in U:5\mid x}\), तो (\(A\cup B\)') क्या है?
If \(U={1,2,\ldots,20}\), \(A={x\in U:2\mid x}\), and \(B={x\in U:5\mid x}\), what is (\(A\cup B\)')?
Explanation opens after your attempt
A. ({1,3,7,9,11,13,17,19})
Concept
Remove numbers divisible by (2) or (5) from (U). The remaining numbers are ({1,3,7,9,11,13,17,19}).
Why this answer is correct
The correct answer is A. ({1,3,7,9,11,13,17,19}). Remove numbers divisible by (2) or (5) from (U). The remaining numbers are ({1,3,7,9,11,13,17,19}).
Exam Tip
(2) या (5) से विभाज्य संख्याओं को (U) से हटाते हैं। बची संख्याएं ({1,3,7,9,11,13,17,19}) हैं।
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