यदि \(A=\{cat,dog,cow\}\) और \(B=\{dog,goat\}\) है, तो \(A\cup B\) क्या होगा?
If \(A=\{cat,dog,cow\}\) and \(B=\{dog,goat\}\), what is \(A\cup B\)?
Explanation opens after your attempt
Correct Answer
A. ( {cat,dog,cow,goat} )
Concept
The union contains all distinct names, so it is ({cat,dog,cow,goat}). Write the repeated name (dog) only once.
Why this answer is correct
The correct answer is A. ( {cat,dog,cow,goat} ). The union contains all distinct names, so it is ({cat,dog,cow,goat}). Write the repeated name (dog) only once.
Exam Tip
संघ में सभी अलग-अलग नाम आते हैं, इसलिए ({cat,dog,cow,goat}) है। समान नाम (dog) को एक बार लिखें।
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