anonymous
  • anonymous
an=(n-1)!/n^2,1≤n≤5
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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dumbcow
  • dumbcow
just plug in the numbers 1 thru 5 for n to get the sequence
anonymous
  • anonymous
i know but im gettin weird answers so i know im doin it wrong
dumbcow
  • dumbcow
ok are you doing the factorials correctly 3! = 3*2*1

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anonymous
  • anonymous
for example, a1= 2, a2= 24, a3=181440 now i know thats wrong
dumbcow
  • dumbcow
a1 = (1-1)!/1^2 a1 = 0!/1 0! = 1 a1 = 1
dumbcow
  • dumbcow
a2 = (2-1)!/2^2 a2 = 1!/4 1! = 1 a2 = 1/4
anonymous
  • anonymous
so a3= 2/9 ???
dumbcow
  • dumbcow
yes good
anonymous
  • anonymous
n a4= 3/16, and a5=4/25 ??
anonymous
  • anonymous
no thats wrong...
dumbcow
  • dumbcow
a4 = 3*2*1/16
anonymous
  • anonymous
so a4=6/16 ???
dumbcow
  • dumbcow
yes but remember to reduce
anonymous
  • anonymous
ok so a4=3/8, ans a5=24/25 ???
dumbcow
  • dumbcow
correct
dumbcow
  • dumbcow
! means multiply every number til you get to one :)
anonymous
  • anonymous
can u possibly help me with another problem? this one i dont get because it is a work problem...
dumbcow
  • dumbcow
ok
anonymous
  • anonymous
thank you i just posted it

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