यदि (|U|=15), (|A'|=6), तो (|A|) क्या होगा?

If (|U|=15), (|A'|=6), what is (|A|)?

Explanation opens after your attempt
Correct Answer

B. (9)

Step 1

Concept

A set and its complement together form (U). Hence (|A|=15-6=9).

Step 2

Why this answer is correct

The correct answer is B. (9). A set and its complement together form (U). Hence (|A|=15-6=9).

Step 3

Exam Tip

पूरक और समुच्चय मिलकर (U) बनाते हैं। इसलिए (|A|=15-6=9)।

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यदि (|U|=15), (|A'|=6), तो (|A|) क्या होगा? / If (|U|=15), (|A'|=6), what is (|A|)?

Correct Answer: B. (9). Explanation: पूरक और समुच्चय मिलकर (U) बनाते हैं। इसलिए (|A|=15-6=9)। / A set and its complement together form (U). Hence (|A|=15-6=9).

Which concept should I revise for this Mathematics MCQ?

A set and its complement together form (U). Hence (|A|=15-6=9).

What exam hint can help solve this Mathematics question?

पूरक और समुच्चय मिलकर (U) बनाते हैं। इसलिए (|A|=15-6=9)।