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If the set A contains 5 elements and th...

If the set `A` contains 5 elements and the set B contains 6 elements, then the number of one-one and onto mappings from A to B is (a)720 (b) 120 (c) 0 (d) none of these

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To find the number of one-one and onto mappings (bijective functions) from set A to set B, we need to consider the definitions of one-one and onto functions. 1. **Understanding the Sets**: - Set A contains 5 elements. - Set B contains 6 elements. 2. **Definition of One-One and Onto**: - A function is one-one (injective) if different elements in set A map to different elements in set B. ...
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