यदि \(U=\{a,b,c,d,e,f,g,h\}\), \(A=\{a,b,c,d\}\) और \(B=\{c,d,e,f\}\), तो \(A'\triangle B'\) में कितने तत्व हैं?

If \(U=\{a,b,c,d,e,f,g,h\}\), \(A=\{a,b,c,d\}\) and \(B=\{c,d,e,f\}\), how many elements are in \(A'\triangle B'\)?

Explanation opens after your attempt
Correct Answer

B. (4)

Step 1

Concept

(A'={e,f,g,h}) and (B'={a,b,g,h}). Elements in exactly one are (a,b,e,f), so there are (4).

Step 2

Why this answer is correct

The correct answer is B. (4). (A'={e,f,g,h}) and (B'={a,b,g,h}). Elements in exactly one are (a,b,e,f), so there are (4).

Step 3

Exam Tip

(A'={e,f,g,h}) और (B'={a,b,g,h}) हैं। केवल एक में आने वाले तत्व (a,b,e,f) हैं, इसलिए (4) तत्व हैं।

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Mathematics Answer, Explanation and Revision Hints

यदि \(U=\{a,b,c,d,e,f,g,h\}\), \(A=\{a,b,c,d\}\) और \(B=\{c,d,e,f\}\), तो \(A'\triangle B'\) में कितने तत्व हैं? / If \(U=\{a,b,c,d,e,f,g,h\}\), \(A=\{a,b,c,d\}\) and \(B=\{c,d,e,f\}\), how many elements are in \(A'\triangle B'\)?

Correct Answer: B. (4). Explanation: (A'={e,f,g,h}) और (B'={a,b,g,h}) हैं। केवल एक में आने वाले तत्व (a,b,e,f) हैं, इसलिए (4) तत्व हैं। / (A'={e,f,g,h}) and (B'={a,b,g,h}). Elements in exactly one are (a,b,e,f), so there are (4).

Which concept should I revise for this Mathematics MCQ?

(A'={e,f,g,h}) and (B'={a,b,g,h}). Elements in exactly one are (a,b,e,f), so there are (4).

What exam hint can help solve this Mathematics question?

(A'={e,f,g,h}) और (B'={a,b,g,h}) हैं। केवल एक में आने वाले तत्व (a,b,e,f) हैं, इसलिए (4) तत्व हैं।