nguyendangmyanh456 4/11/2024 10:04:24 PM

Câu 23:        Có bao nhiêu cách xếp https://lh7-us.googleusercontent.com/docsz/AD_4nXdZtGHZBRQ9rYk_dyiRfdi8-QUgqu1stcX86QMicK9AO8QEKKq5mUZ5dXcDbHzYdHYa5PPR4qSd02NejEvqoAHykiQnRZYwVxzw9XbA6F6fi_i0JvareQWfhRiOOBSNGnO5e6YKGHZ3o1SQRit_6jG6hdZ5lY3XwA=s800?key=RIwYW7zWLkdsX14pzAwMkw bạn vào một dãy gồm https://lh7-us.googleusercontent.com/docsz/AD_4nXe11IuGjWiEaRP8qaZQ7zMymRkIlm89eDehGxUqaWkhc2wVk2zXAH4c2LtpOemxPMDdNaydo5BCfqvykOQ37SYq2j6TeJJ50zG85E7i7j5ecnYUGsQiNSRFKQYhOW3sObN5_NqUVXfucaOmVze_OQtpu8BC6NuAZ38=s800?key=RIwYW7zWLkdsX14pzAwMkw chiếc ghế sao cho mỗi chiếc ghế có đúng một học sinh ngồi?

A. https://lh7-us.googleusercontent.com/docsz/AD_4nXcU25HU5Dsa0cnyAen4vieU6zWMTsAYm8eZN7sMNhuAyZfJLbqJZwYW6Wvt0ZxQvDBX7Fmf89_mipZDYbAVL7_Ll9vhX2r9omVnJZyVeLxDVVcz2eaS6LmNh0xuYwB-Iqrzs3W5bIyUuw7PVZCW08jBWDM_nea9Rw=s800?key=RIwYW7zWLkdsX14pzAwMkw.        Bhttps://lh7-us.googleusercontent.com/docsz/AD_4nXd2nMWFICzIuhyyXc3RI4Wy0rDcrKnJQpuwgsgLE9c1R3BRma86Ur0Y3ZanvSHxKZu_K8OUhkyjK7BSdOGGtJlXIzKcOaHel5J3-nEzrgI-vYeal8X60PRVVHZ8EmUJEXvZXlvUCe_pci8qyP9HXYYA6nfZy3Ho8mM=s800?key=RIwYW7zWLkdsX14pzAwMkw.        C. https://lh7-us.googleusercontent.com/docsz/AD_4nXdVNnAdnrpPem4cXCOPlESftT8M0YuiqjPRpxIdwronBrHlqSmDgkiM4fu-_LYPOwwNDgCkiwVXdO5YReAgSkEEG4b4GgAQ3hd1O7cirhOQivBeTFGZ2Kw-MPfyLzUoJcoGSK_zOhSw-r5KhT-oGg8YqrLMmOI2bFc=s800?key=RIwYW7zWLkdsX14pzAwMkw.        D. https://lh7-us.googleusercontent.com/docsz/AD_4nXfl5HS9ZG8Yf66giaCsH3An1_750-FW4GrFbFCG4aOegbu1C1Q21ChxUOwAoVqoENM1LdZjWKX17m_uEh-wAMFpFuAIQHPCZJMQEKjSfUJMhr663To0rM-ll0XGkAmDYdFv_ogVrnbNowOlB9EQguLubavlEjM2XKs=s800?key=RIwYW7zWLkdsX14pzAwMkw.

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