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miss Akunina [59]
3 years ago
14

Write an explicit formula for An, the nth term of the sequence 15, 7, -1,....

Mathematics
1 answer:
pychu [463]3 years ago
4 0

Answer:

aₙ=23 - 8n

Step-by-step explanation:

15, 7, -1,....

AP with the first term of 15 and common difference  -8

aₙ=a₁+(n-1)d= 15+(n-1)*(-8)= 15 -8n +8= 23 - 8n

aₙ=23 - 8n

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