यदि \(f:A\to B\) एक फलन है और (|A|=3), (|B|=2) हों तो (f) का ग्राफ कितने ordered pairs रखेगा?
If \(f:A\to B\) is a function and (|A|=3), (|B|=2), how many ordered pairs will the graph of (f) contain?
Explanation opens after your attempt
B. (3)
Concept
The graph of a function has exactly one ordered pair for each element of the domain. Therefore the number of ordered pairs is (|A|=3).
Why this answer is correct
The correct answer is B. (3). The graph of a function has exactly one ordered pair for each element of the domain. Therefore the number of ordered pairs is (|A|=3).
Exam Tip
फलन के ग्राफ में प्रांत के हर अवयव के लिए ठीक एक ordered pair होता है। इसलिए ordered pairs की संख्या (|A|=3) है।
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