Question

the algebric form of an arithemetic sequence is 2n+5.what its common difference and find to 10th ter.​

Answer 1

Answer:

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)

Answer 2

Given, arithmetic sequence X n

=5n+3a. 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.