Thread: Sequence question

Let {An}14 n = 0 be the sequence of powers of 3 with An = 3^n. Determine the value of the corresponding series.

1 + 3 + 9 + ...... + 4 782 969.

do i just use An= Ar^n-1 ?

thanks for any help

Originally Posted by smplease

Let {An}14 n = 0 be the sequence of powers of 3 with An = 3^n. Determine the value of the corresponding series.

1 + 3 + 9 + ...... + 4 782 969.

do i just use An= Ar^n-1 ?

thanks for any help

Use the formula for the sum of a geometric series: Geometric series - Wikipedia, the free encyclopedia