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Business, 19.09.2021 14:00 Annaborden02

2.7.Một công nhân đứng 3 máy. XS để trong 1 ca làm việc máy I hỏng là 0,2, máy II hỏng là 0,1 và máy III hỏng là 0,15. Tìm XS để trong ca làm việc:a) Cả 3 máy không hỏng. b) Cả 3 máy đều hỏng. c) Ít nhất 1 máy hỏng. d) Ít nhất 1 máy không hỏng.

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2.7.Một công nhân đứng 3 máy. XS để trong 1 ca làm việc máy I hỏng là 0,2, máy II hỏng là 0,1 và máy...
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