Question

. The first term of an arithmetic sequence is 3 while the 14th term is 68. Find the common difference of the sequence.
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Answer 1

Step-by-step explanation:

Given, arithmetic sequence X

n

=5n+3

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

X

1

=5×1+3=8

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

The remainder divide by 5=3.

(

5

8

=3,

5

13

=3,

5

18

=3,etc)