यदि \(U=\{1,2,3,4,5,6,7,8\}\), \(A=\{1,2,3\}\) और \(B=\{3,4,5\}\) हैं तो (\(A\cup B\)') क्या होगा?

If \(U=\{1,2,3,4,5,6,7,8\}\), \(A=\{1,2,3\}\) and \(B=\{3,4,5\}\), what is (\(A\cup B\)')?

Explanation opens after your attempt
Correct Answer

B. ({6,7,8})

Step 1

Concept

First \(A\cup B={1,2,3,4,5}\). Its complement is the remaining elements ({6,7,8}) in (U).

Step 2

Why this answer is correct

The correct answer is B. ({6,7,8}). First \(A\cup B={1,2,3,4,5}\). Its complement is the remaining elements ({6,7,8}) in (U).

Step 3

Exam Tip

पहले \(A\cup B={1,2,3,4,5}\) है। इसका पूरक (U) में बचे हुए ({6,7,8}) होंगे।

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Mathematics Answer, Explanation and Revision Hints

यदि \(U=\{1,2,3,4,5,6,7,8\}\), \(A=\{1,2,3\}\) और \(B=\{3,4,5\}\) हैं तो (\(A\cup B\)') क्या होगा? / If \(U=\{1,2,3,4,5,6,7,8\}\), \(A=\{1,2,3\}\) and \(B=\{3,4,5\}\), what is (\(A\cup B\)')?

Correct Answer: B. ({6,7,8}). Explanation: पहले \(A\cup B={1,2,3,4,5}\) है। इसका पूरक (U) में बचे हुए ({6,7,8}) होंगे। / First \(A\cup B={1,2,3,4,5}\). Its complement is the remaining elements ({6,7,8}) in (U).

Which concept should I revise for this Mathematics MCQ?

First \(A\cup B={1,2,3,4,5}\). Its complement is the remaining elements ({6,7,8}) in (U).

What exam hint can help solve this Mathematics question?

पहले \(A\cup B={1,2,3,4,5}\) है। इसका पूरक (U) में बचे हुए ({6,7,8}) होंगे।