4 years ago

Consider the sequence 7, 3, −1, −5,−9, … .

Mathematics

1 answer:

Pepsi [2]4 years ago

4 0

Answer:

$a_n=\,\boxed{11-4n}$

Step-by-step explanation:

The sequence has a common difference of 3-7 = -4 and a first term of 7. Using the explicit formula ...

an = a1 +d(n -1)

we can fill in those values to find ...

an = 7 -4(n -1)

an = 11 -4n

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