3 years ago

If an=5n-3 find the common difference

Mathematics

1 answer:

Hitman42 [59]3 years ago

4 0

Answer:

d = 5

Step-by-step explanation:

The common difference d of an arithmetic sequence is

d = a₂ - a₁ = a₃ - a₂ = $a_{n}$ - $a_{n-1}$

Given

$a_{n}$ = 5n - 3

Generate the first 2 terms of the sequence by substituting n = 1, n = 2

a₁ = 5(1) - 3 = 5 - 3 = 2

a₂ = 5(2) - 3 = 10 - 3 = 7

d = 7 - 2 = 5

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Can somebody help me with this. 35 points! :)))))

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