Question

If the sum of n terms of an arithmetic sequence is 3n+5.Find algebraic expression?​

Answer 1

Step-by-step explanation:

Given, arithmetic sequence Xn=5n+3

a. The first term of the sequence, put n=1

X1=5×1+3=8

b. d=5 (coefficient of n be the common difference)

The remainder divide by 5=3.

(58=3,513=3,518=3,etc)

Answer 2

Answer:

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