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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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Let a and b are two positive integers such that b ≠ 1. Let g(a, b) = Number of lattice points inside the quadrilateral formed by lines x = 0, y = 0, x = b and y = a. f(a, b) = `[a/b] + [(2a)/b] + ... + [((b - 1)a)/b]`, then the value of `[(g(101, 37))/(f(101, 37))]` is ______.
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(where [.] denotes greatest integer function)
