vanduyms 4/12/2024 8:28:10 AM

Câu 23:        Có bao nhiêu cách xếp https://lh7-us.googleusercontent.com/oC-lZ-IYik3xfLSITx_o7aAZWTDUsBG9aMdCRgeQ1x0_YU9cvydYWSqTjFOZ5Gj0ANzMKfqK3WeY7BuEcdQIEr36Zv4i5BoTOPjKVvMAb_8OMSACTHXneQrendiLnoNDCFtLaWWZgs1MQAc=s800 bạn vào một dãy gồm https://lh7-us.googleusercontent.com/z50TUKIARWaWYssR56YfkAsfI4dKpNbqKiLT27T8UypdkOthe--uEd3H-yD0qDJPNWrk3y7lG-PtGOfG0oxJ0HIwSIZeH3NxuJvsMvL195DMHgIfgc1yHXXC__E-79AAazHLEOH8lChyaXA=s800 chiếc ghế sao cho mỗi chiếc ghế có đúng một học sinh ngồi?

A. https://lh7-us.googleusercontent.com/dMfROZiHoua17rxSbEMu3OJI07MLO1j8IQG1QT8rft_HJwQy6r8E1CjHe-H2ROmEyi3g-p6ujzFrinGyplyz32lGepLUWygYZFtyEwRYm4aHNbmnhwmfw2OYcCEWXfiX7fPDJ5H3P_e8UZM=s800.        B. https://lh7-us.googleusercontent.com/COUthso_bAb401ctKPsrWeO4IuKG7d3X1l45Ch0lH1haLYIooR2zlmJCgFBmGnTckfEDgAyVHF87txPb4N75BVt8HBULdpnyAdyECtbH0q0XdhbsJA5ho_xcxyoYLncTA188BobVkQJAVx0=s800.        C. https://lh7-us.googleusercontent.com/GKczw5l12fSKphKp7PsQfpATUBCwXYhVsZQJZAX-vQppi4ChZ_DLSV93DSyBDtg5XIG6L0YspvUUWJgd55l_OP-Uq0BgQrsCpGW1ERZrVq8vH4bdWPb789bq2OgxBlNIvXsbw2Hk-F0QWK4=s800.        D. https://lh7-us.googleusercontent.com/k0eiAsMUz5D0ZK73h8AowgCmYriHpx1MLcvFlA7wqDvQ9iDwawFHgGeTEskddpgM3yw8SxxTefOfEzwSF_POKYOQebUO7PXLE0S6lPE5dkfuWKi_Ny5rcaKoNys0nsCw4NIrobhvaVcOEBk=s800.

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