Find the eighth term of the arithmetic sequence whose first term is 4 and whose common difference is -7.

ka1leE

ka1leE

Answered question

2021-01-02

Find the eighth term of the arithmetic sequence whose first term is 4 and whose common difference is -7.

Answer & Explanation

hesgidiauE

hesgidiauE

Skilled2021-01-03Added 106 answers

Step 1
we have to find the eighth term of the arithmetic sequence whose first term is 4 and whose common difference is -7.
Step 2
Let the eighth term is denoted by a8
here
a1= first term =4
d=7
now as we know that nth term is given as
an=a1+(n1)d
where a1 is the first term an d is the common difference.
a8=4+(81)(7)
a8=4+7(7)
a8=449
a8=45
Jeffrey Jordon

Jeffrey Jordon

Expert2021-11-03Added 2605 answers

Answer is given below (on video)

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