यदि A={1,2} और B={3,4} हैं, तो A×B में कितने क्रमित युग्म होंगे?

If A={1,2} and B={3,4}, how many ordered pairs are in A×B?

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Correct Answer

B. 4

Step 1

Concept

Here ∣A×B∣=∣A∣⋅∣B∣=2⋅2=4. In exams, multiply the number of elements for a Cartesian product.

Step 2

Why this answer is correct

The correct answer is B. 4. Here ∣A×B∣=∣A∣⋅∣B∣=2⋅2=4. In exams, multiply the number of elements for a Cartesian product.

Step 3

Exam Tip

∣A×B∣=∣A∣⋅∣B∣=2⋅2=4। परीक्षा में कार्तीय गुणनफल में अवयवों की संख्या गुणा करें।

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यदि A={1,2} और B={3,4} हैं, तो A×B में कितने क्रमित युग्म होंगे? / If A={1,2} and B={3,4}, how many ordered pairs are in A×B?

Correct Answer: B. 4. Explanation: ∣A×B∣=∣A∣⋅∣B∣=2⋅2=4। परीक्षा में कार्तीय गुणनफल में अवयवों की संख्या गुणा करें। / Here ∣A×B∣=∣A∣⋅∣B∣=2⋅2=4. In exams, multiply the number of elements for a Cartesian product.

Which concept should I revise for this Mathematics MCQ?

Here ∣A×B∣=∣A∣⋅∣B∣=2⋅2=4. In exams, multiply the number of elements for a Cartesian product.

What exam hint can help solve this Mathematics question?

∣A×B∣=∣A∣⋅∣B∣=2⋅2=4। परीक्षा में कार्तीय गुणनफल में अवयवों की संख्या गुणा करें।