Answer:
7th term =1
Step-by-step explanation:
This is Geometric progression.

7th term =1
Answer:
line Xz
Step-by-step explanation:
because xz is
trasnveral
to XYZ
to XWZ
ok make
as brain list
thanks
Answer:
Step-by-step explanation:
1,
-10,20,-40,80,...
common ratio=20/-10=-2
it is a geometric sequence.
2.
15,-5,-25,-45
common difference=-5-15=-20
it is an arithmetic sequence.