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Determine the nth term rule and find the 45th term for the arithmetic sequence with a10=1 and d=−6.

1 Answer

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Answer:

a(45) =-209

Explanation:

a(n) = a +(n-1)d

d=-6

we have to get a1

By using:

a(10) = a1 +(10-1)-6=1

a(10) = a1 +(9)-6 =1

a1 =1+54=55

So:a(45) = 55 +(45-1)-6=-209

hope this helps

User Mehul Sojitra
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