Question

what is the common difference of 3n±5?​

Answer 1

Step-by-step explanation:

nth term=a

n

=3n+5(given)

a

(n−1)

=3(n−1)+5=3n+2

Common difference =d=a

n

−a

(n−1)

=(3n+5)−(3n+2)

=3n+5−3n−2

=3

Therefore, common difference is 3.

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