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iogann1982 [59]
2 years ago
13

HELP ME PLEASE

Mathematics
1 answer:
Gnoma [55]2 years ago
8 0

Answer:

  1) a1 = -5, a(n) = a(n-1) + 2

Step-by-step explanation:

The explicit formula for an arithmetic sequence can be written ...

  an = a1 +d(n -1)

The corresponding recursive formula is ...

  a(1) = a1, a(n) = a(n -1) +d

__

Comparing the above explicit formula to the one you're given, you see that ...

  a1 = -5, d = 2

Using these values in the recursive formula gives you ...

  a(1) = -5, a(n) = a(n-1) +2

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