Question

Find a sequence for 2 -3 4 -5 6 -7 etc..
Basically odds are negative and evens are positive.

Answer 1

what happens when you multiply two negatives together?

Answer 2

It becomes positive. Not sure what you are trying to hint at.

Answer 3

well if i do that again i have a negative right? so positive, negative, positive, etc

Answer 4

so if i want to alternate the sign for each term in the sequence i can multiply it by what everytime?

Answer 5

-1?

Answer 6

correct

Answer 7

now can you figure out the rest of your sequence?

Answer 8

yea thanks

Answer 9

sweet, np

Answer 10

try \[a_n = (-1)^{n+1} (n+1)\]