Asked by Clark
In a geography class 9 students are scheduled to give their presentations tody, one student must leave early so he will present first, how many different ways can you schedule all of todays presentations?
Answers
Answered by
gothic vampire
one student's position is fixed .now the remaining 8 students can give their presentations in 8! ways
8!=8*7*6*5*4*3*2*1=40320
8!=8*7*6*5*4*3*2*1=40320
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