यदि \(A=\{red,blue,green\}\) और \(B=\{blue,yellow\}\) हैं, तो \(A\cup B\) क्या है?
If \(A=\{red,blue,green\}\) and \(B=\{blue,yellow\}\), what is \(A\cup B\)?
Explanation opens after your attempt
Correct Answer
A. ( {red,blue,green,yellow} )
Concept
Union takes all colors from both sets once. (blue) is repeated, so it is written only once.
Why this answer is correct
The correct answer is A. ( {red,blue,green,yellow} ). Union takes all colors from both sets once. (blue) is repeated, so it is written only once.
Exam Tip
संघ में दोनों समुच्चयों के सभी रंग एक बार लिए जाते हैं। (blue) दोहराया हुआ है, इसलिए एक बार लिखा जाएगा।
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