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Verdich [7]
4 years ago
6

Find a formula for an for the arithmetic sequence.

Mathematics
1 answer:
Otrada [13]4 years ago
4 0

Answer:

a_{n} = a + 2(n-1)

Step-by-step explanation:

a_{5}= a_{1} + 4d  \\4 = -4 +4d\\8= 4d\\d= 2\\\\Therefore    \\a_{n} = a_{1} + 2(n-1)

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