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Dezmond15
Dezmond15 Dezmond15
  • 25-07-2016
  • Mathematics
Answered

what is the simple formula for the nth term of the following arithmetic sequence? 14, 18,22, 26,30 ...

Verified Answer :

dalendrk
dalendrk dalendrk
  • 25-07-2016

\(a_n=a_1+(n-1)d\\\\a_1=14;\ a_2=18\\\\d=a_2-a_1\to d=18-14=4\\\\subtitute\\\\\boxed{a_n=14+(n-1)\cdot4=14+4n-4=\boxed{4n+10}}\)

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