Answers

2016-07-27T21:26:01+08:00
-3 because as we can see the common ratio is -1
0
2016-07-27T21:54:08+08:00
N=6 a1=3 r=2
a6=-96
3-96(-2) 
1-(+2)
3+(+192)
3
195
3
S6=65
magtaas ka kuya haha tama yan kems promise
1 5 1
Este ate sorry ^^
ok lng and thank you
paano naging 2 ang ratio
-2 pala be sorry
ok tnk ulit