Respuesta :

skytimex2012
The nth term of an arithmetic sequence is
a
+
(
n
−
1
)
d
where
a
is the first term and
d
is the common difference.
So
a
=
0.2
and
d
=
−
0.8
Hence, the nth term is
0.2
−
0.8
(
n
−
1
)
⇒
0.2
−
0.8
n
+
0.8
so
1
−
0.8
n

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