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Mathematics, 28.08.2021 16:10 olejlund8073

Một lớp có 10 sinh viên nam và 10 sinh viên nữ. Cần chọn ra 5 sinh viên đi dự trại hè, trong đó có ít nhất 1 sinh viên nam và ít nhất 1 sinh viên nữ. Hỏi có bao nhiêu cách?

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Một lớp có 10 sinh viên nam và 10 sinh viên nữ. Cần chọn ra 5 sinh viên đi dự trại hè, trong đó có...
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