Answer
$a_1=-5$;$a_2=5$;$a_3=-5$;$a_4=5$;
$a_5=-5$
Work Step by Step
Initial term, $a_1=-5$ and common ratio $r=-1$.
Now, we need first five terms of a geometric sequence such as:
$a_1=-5$;$a_2=-5(-1)=5$;$a_3=5(-1)=-5$;$a_4=-5(-1)=5$;
$a_5=5(-1)=-5$
Hence, five terms are: $a_1=-5$;$a_2=5$;$a_3=-5$;$a_4=5$;
$a_5=-5$
