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प्रश्न
Consider the set A containing n elements. Then, the total number of injective functions from A onto itself is ______
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उत्तर
Consider the set A containing n elements. Then, the total number of injective functions from A onto itself is n!
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संबंधित प्रश्न
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(Note P(x, y) is lattice point if x, y ∈ I)
(where [.] denotes greatest integer function)
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| Graph A | Graph B |
Which real-life situation resembles a one-one idea when no roll number is repeated?
