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kolezko [41]
3 years ago
8

Write a formula for the nth term of the arithmetic sequence

Mathematics
1 answer:
den301095 [7]3 years ago
8 0

Answer:

Step-by-step explanation:

a_{1}=1\\d=-3-1=-4\\a_{n}=a_{1}+(n-1)d\\a_{n}=1+(n-1)(-4)\\a_{n}=1-4n+4\\a_{n}=5-4n

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