Question

The general equation for the geometric sequence -1, -2, -4, ... is a n = -1 · 2 n - 1 .

True or False

Answer 1

true

Explanation:

:)

Answer 2

if n=1
a1= -1 • 2^(1-1) = -1 TRUE
if n=2
a2= -1 • 2^(2-1) = -2 TRUE
if n=3
a3= -1 • 2^(3-1) = -4 TRUE

True√