यदि \(U={x:x\) (10) से छोटी धनात्मक पूर्ण संख्या है(}) और \(A={x:x^2<20}\), तो (A') क्या है?
If \(U={x:x\) is a positive integer less than (10)(}) and \(A={x:x^2<20}\), what is (A')?
Explanation opens after your attempt
Correct Answer
A. ({5,6,7,8,9})
Concept
\(U={1,\ldots,9}\), and \(x^2<20\) gives \(A=\{1,2,3,4\}\). The remaining set ({5,6,7,8,9}) is the complement.
Why this answer is correct
The correct answer is A. ({5,6,7,8,9}). \(U={1,\ldots,9}\), and \(x^2<20\) gives \(A=\{1,2,3,4\}\). The remaining set ({5,6,7,8,9}) is the complement.
Exam Tip
\(U={1,\ldots,9}\) और \(x^2<20\) के लिए \(A=\{1,2,3,4\}\) है। बाकी ({5,6,7,8,9}) पूरक है।
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