kbkittycatlover7601 kbkittycatlover7601
  • 06-02-2024
  • Mathematics
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Find the number of ways in which n, '1' and n'2 can be arranged in a row so that up to any point in the number of '1' is more than or equal to the number of '2'.

a) 2n
b) 2n + 1
c) n²
d) n!

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