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?
Explanation opens after your attempt
B. 4
Concept
Here ∣A×B∣=∣A∣⋅∣B∣=2⋅2=4. In exams, multiply the number of elements for a Cartesian product.
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.
Exam Tip
∣A×B∣=∣A∣⋅∣B∣=2⋅2=4। परीक्षा में कार्तीय गुणनफल में अवयवों की संख्या गुणा करें।
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