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Let n and k be positive integers such that n≥k+1C2. The number of integral solutions of x1+x2+⋯+xk=n, x1≥1,x2≥2,⋯xk≥k is |
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Answer» Let n and k be positive integers such that n≥k+1C2. The number of integral solutions of x1+x2+⋯+xk=n, x1≥1,x2≥2,⋯xk≥k is |
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