6! - 5! = 25.k!, then k =
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0
Answer:
k=1\25
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Answered by
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6!-5! = 25×k!
5!(6-1) = 25×k!
5!×5 = 25×k!
5! = 5×k!
5×4! = 5×k!
4! = k!
so, k = 4 ...ans
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