Question

What is the seventh term of a sequence whose first term is 1 and whose common ratio is 3

Answer 1

`a_1=1;\ r=3\\\\a_n=a_1r^(n-1)\to a_n=1\cdot3^(n-1)=3^(n-1)\\\\a_7=3^(7-1)=3^6=729\\\\Answer:\boxed{a_7=729}`

Answer 2

The seventh term of a sequence whose first term is 1 and whose common ratio is 3 is 729.