यदि (A) में (4) तत्व हैं और \(f:A\to B\) फलन है तो (f) में कितने क्रमित युग्म होंगे?
If (A) has (4) elements and \(f:A\to B\) is a function, how many ordered pairs will (f) have?
Explanation opens after your attempt
A. (4)
Concept
A function has exactly one pair for every domain element. Therefore there will be (4) pairs.
Why this answer is correct
The correct answer is A. (4). A function has exactly one pair for every domain element. Therefore there will be (4) pairs.
Exam Tip
फलन में प्रत्येक प्रांत तत्व के लिए ठीक एक युग्म होता है। इसलिए कुल युग्म (4) होंगे।
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