कौन सा विकल्प A={1,2,3} से B={a,b} में स्थिर फलन है?
Which option is a constant function from A={1,2,3} to B={a,b}?
Explanation opens after your attempt
A. {(1,a),(2,a),(3,a)}
Concept
In the first option, all inputs have image a. Therefore it is a constant function.
Why this answer is correct
The correct answer is A. {(1,a),(2,a),(3,a)}. In the first option, all inputs have image a. Therefore it is a constant function.
Exam Tip
पहले विकल्प में सभी इनपुट का प्रतिबिंब a है। इसलिए यह स्थिर फलन है।
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