Question

Write the first five terms of each sequence. An arithmetic sequence with a common difference of 1.3 and a first term of 5.2.

Answer 1

5.2,10.4,15.6,20.8,26

Explanation:

Given that,

Common difference of an AP, d = 1.3

First term, a = 5.2

We need to find the first 5 term of the sequence.

Second term,

`a_2=a+(n-1)d\\\\a_2=5.2+(2-1)(5.2)\\\\a_2=10.4`

Third term,

`a_3=5.2+(3-1)(5.2)\\\\a_2=15.6`

Fouth term,

`a_4=5.2+(4-1)(5.2)\\\\a_4=20.8`

Fifth term,

`a_5=5.2+(5-1)(5.2)\\\\a_5=26`

The AP is : 5.2,10.4,15.6,20.8,26