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olchik [2.2K]
3 years ago
12

Write a formula for the nth term of the arithmetic sequence 1, 5, 9, 13, ……. then use the formula to find f(20).

Mathematics
1 answer:
Luba_88 [7]3 years ago
3 0
1+4(n-1)=f(n)
f(20)=77
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Step-by-step explanation:

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3 years ago
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