Question

Find the 7th term of a geometric sequence with t1=5 and r=-2

Answer 1

Hello,


`t_(1)=5`

`t_(2)=5*(-2)`

`t_(3)=5*(-2)^2`


`t_(n)=5*(-2)^(n-1)`


`t_(7)=5*(-2)^6=320`