(Q13).Which of the following lists of numbers form GP?
(ii) 64, -32, 16,
All the terms are non zero
a
2
a
1
=
-
=
-
and
a
3
a
2
=
-
=
-
∴
a
2
a
1
=
a
3
a
2
=
-
So, the given list of numbers form a GP with common ratio
-
Clear