anonymous
  • anonymous
what is another way to write (2k-1)! ?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
1*2*3*4*5.......(2k-2)*(2k-1)
anonymous
  • anonymous
for example 5!=1*2*3*4*5=120
anonymous
  • anonymous
for instance, (k+1)! = (k+1) * k! how does it work in the opposite direction, or does it?

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anonymous
  • anonymous
yes it does.
anonymous
  • anonymous
so 2k! * what = (2k-1)! ?
anonymous
  • anonymous
say you have k*k!=(k+1)*k!-k!=(k+1)!-k!
anonymous
  • anonymous
no 2k!*1/2k =(2K-1)!
anonymous
  • anonymous
just like the example given by dipankarstudy 5! = 5*4*3*2*1 = 5*4! = 5* (5-1)!
anonymous
  • anonymous
it is from the basic definition of factorial.
anonymous
  • anonymous
ah kk thank you
anonymous
  • anonymous
dindatc my name is dipankar.
anonymous
  • anonymous
(2k-1)! = (2k-1)(2k-2)(2k-3)(2k-4)........ (2k-1)(2k-2)(2k-3)(2k-4)........ can be written as-> (2k-1)(2k-2)!
anonymous
  • anonymous
@dipankar ok
anonymous
  • anonymous
yes ..thank you for making the answer more clear.
anonymous
  • anonymous
np :)
anonymous
  • anonymous
hi

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