Question

@jim_thompson5910 and @amistre64 please help me :(

does any one know how to do this?
list the first 5 sequence defined by {-3/2(-1/2)^n-1

Answer 1

what are the answers for n=1,2,3,4,5

Answer 2

or at least thats how im interpreting it

Answer 3

first 5 terms, not sure what first 5 seqs means

Answer 4

i think its the first answers you get when you put n as any number right

Answer 5

well, when n equals the first 5 positive integers yes

Answer 6

I'm guessing it is \[\Large -\frac{3}{2}\left(-\frac{1}{2}\right)^{n-1}\] right?

Answer 7

so do i plug n as any number to that equation their

Answer 8

n=1 gives 1st term
n=2 gives 2nd term
n=3 gives 3rd term ... etc

Answer 9

no, start off by plugging in n = 1

Answer 10

2*2^(n-1) = 2^n might simplify the bottom

Answer 11

and the top is -3*(+-1)

Answer 12

ok then

Answer 13

\[\frac{-3}{(-2)^n}\]

Answer 14

err, might have a wrong sign on that thing

Answer 15

for a dbl chk ....

http://www.wolframalpha.com/input/?i=3%2F%28-2%29%5En

Answer 16

ok ill check thanks for your help:)