Find \(\displaystyle{a}_{{5}}\) and \(\displaystyle{a}_{{n}}\) for the

George Michael

George Michael

Answered question

2022-04-13

Find a5 and an for the geometric sequences.
a2=12, r=12

Answer & Explanation

razmenile7chp

razmenile7chp

Beginner2022-04-14Added 11 answers

Common ratio: r=12
General term of the geometric sequence an=a1rn1
Second term a2=12
Thus, we have
a2=12
a1r21=12
a1(12)1=12
a1=24
Thus, the general term is an=24(12)n1
Find a5
a5=a1r51
=24(12)4
=24(116)
=32

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