Hi who can help me reduce function

Hi who can help me reduce function

Postby math12345 » Sat Feb 27, 2021 3:40 pm

Hi who can help me reduce function, attached function in WORD

Thanks
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Re: Hi who can help me reduce function

Postby Guest » Wed Mar 31, 2021 6:51 pm

That can be written as [tex]\frac{n!}{k!(n- k)!}\frac{(n-k)!}{k!(n!- k_1!(n-k)!)}[/tex].
The only "reduction" I can see is to cancel the (n- k)! in numerator and denominator. That "reduces" to
[tex]\frac{n!}{(k!)^2(n!- k_1!(n- k)!)}[/tex]
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