यदि \(A=\{1,2,3,4\}\) है, तो (\mathcal{P}(A)) में (A) को छोड़कर कितने members होंगे?

If \(A=\{1,2,3,4\}\), how many members are there in (\mathcal{P}(A)) excluding (A) itself?

Explanation opens after your attempt
Correct Answer

B. (15)

Step 1

Concept

(\mathcal{P}(A)) has \(2^4=16\) members. Excluding (A) itself leaves (16-1=15).

Step 2

Why this answer is correct

The correct answer is B. (15). (\mathcal{P}(A)) has \(2^4=16\) members. Excluding (A) itself leaves (16-1=15).

Step 3

Exam Tip

(\mathcal{P}(A)) में \(2^4=16\) members हैं। (A) को हटाने पर (16-1=15) बचेंगे।

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Mathematics Answer, Explanation and Revision Hints

यदि \(A=\{1,2,3,4\}\) है, तो (\mathcal{P}(A)) में (A) को छोड़कर कितने members होंगे? / If \(A=\{1,2,3,4\}\), how many members are there in (\mathcal{P}(A)) excluding (A) itself?

Correct Answer: B. (15). Explanation: (\mathcal{P}(A)) में \(2^4=16\) members हैं। (A) को हटाने पर (16-1=15) बचेंगे। / (\mathcal{P}(A)) has \(2^4=16\) members. Excluding (A) itself leaves (16-1=15).

Which concept should I revise for this Mathematics MCQ?

(\mathcal{P}(A)) has \(2^4=16\) members. Excluding (A) itself leaves (16-1=15).

What exam hint can help solve this Mathematics question?

(\mathcal{P}(A)) में \(2^4=16\) members हैं। (A) को हटाने पर (16-1=15) बचेंगे।