यदि \(U=\{1,2,3,4,5,6,7,8\}\), \(A=\{1,2,3,4\}\) और \(B=\{3,4,5,6\}\), तो (n(P\(A'\cap B'\))) क्या है?

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

Explanation opens after your attempt
Correct Answer

B. (4)

Step 1

Concept

(A'\cap B'=\(A\cup B\)'={7,8}), so (n(P\(A'\cap B'\))=22=4). De Morgan's law saves time.

Step 2

Why this answer is correct

The correct answer is B. (4). (A'\cap B'=\(A\cup B\)'={7,8}), so (n(P\(A'\cap B'\))=22=4). De Morgan's law saves time.

Step 3

Exam Tip

(A'\cap B'=\(A\cup B\)'={7,8}), इसलिए (n(P\(A'\cap B'\))=22=4)। डी मॉर्गन नियम से समय बचता है।

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Mathematics Answer, Explanation and Revision Hints

यदि \(U=\{1,2,3,4,5,6,7,8\}\), \(A=\{1,2,3,4\}\) और \(B=\{3,4,5,6\}\), तो (n(P\(A'\cap B'\))) क्या है? / If \(U=\{1,2,3,4,5,6,7,8\}\), \(A=\{1,2,3,4\}\), and \(B=\{3,4,5,6\}\), then what is (n(P\(A'\cap B'\)))?

Correct Answer: B. (4). Explanation: (A'\cap B'=\(A\cup B\)'={7,8}), इसलिए (n(P\(A'\cap B'\))=22=4)। डी मॉर्गन नियम से समय बचता है। / (A'\cap B'=\(A\cup B\)'={7,8}), so (n(P\(A'\cap B'\))=22=4). De Morgan's law saves time.

Which concept should I revise for this Mathematics MCQ?

(A'\cap B'=\(A\cup B\)'={7,8}), so (n(P\(A'\cap B'\))=22=4). De Morgan's law saves time.

What exam hint can help solve this Mathematics question?

(A'\cap B'=\(A\cup B\)'={7,8}), इसलिए (n(P\(A'\cap B'\))=22=4)। डी मॉर्गन नियम से समय बचता है।