Determine whether the sequence below is a geometric sequence and, if so, find a formula that describes the sequence.

2, 4, 8, 16, –32, 64, …
Please help

Question

Determine whether the sequence below is a geometric sequence and, if so, find a formula that describes the sequence.

2, 4, 8, 16, –32, 64, …  
Please help

mathmale · Answer

Are you positive that "32" is negative in the original problem?  I doubt it.

anonymous · Answer

yes thats what it says right here thats what got me confused

hesan · Answer

yeah for Geometric Seq. it should be +32

mathmale · Answer

You're supposed to determine whether or not 2, 4, 8, 16, –32, 64, …    is a geometric sequence.  What's your first response?

anonymous · Answer

attachment

hesan · Answer

|dw:1392442401977:dw|

anonymous · Answer

yes thats an option I think

anonymous · Answer

attachment

hesan · Answer

for any number of term

hesan · Answer

Just replace the number by n and you will get that term

anonymous · Answer

those are my three options the last one is "This is not a geometric sequence" and so it's B?

hesan · Answer

|dw:1392442581206:dw|