# how many four-digit numbers can be formed from the numbers 1,3,4,6,8 and 9 if repetition of digits is not allowed ?

(1) Answers

1,3,4,6,8,9 6 algarismos 6*5*4*3*2*1 = 720

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(1) Answers

1,3,4,6,8,9 6 algarismos 6*5*4*3*2*1 = 720

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