anonymous
  • anonymous
What are the explicit equation and domain for an arithmetic sequence with a first term of 5 and a second term of 3?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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welshfella
  • welshfella
common difference = second term - first term
welshfella
  • welshfella
explicit equation is an = a + (n - 1)d where common difference = d and first term = a
anonymous
  • anonymous
I think it starts like a_n=5-2(n-1) right?

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welshfella
  • welshfella
yes good job
welshfella
  • welshfella
now the domain is the possible value of the terms
welshfella
  • welshfella
listing the terms as the value odf d = -2 they are 5, 3, 1, -1, - 3......
anonymous
  • anonymous
the last part I need is whether or not it is all integers where n>0 or n>1
welshfella
  • welshfella
n starts from 1 so n > 0
anonymous
  • anonymous
alright thank you again!
welshfella
  • welshfella
yw

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