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Mathematics 17 Online
OpenStudy (anonymous):

What is the sum of the geometric sequence -1, 6, -36, ... if there are 6 terms? -39,991 6,665 -6,665 39,991

OpenStudy (anonymous):

which answer is it? i got -6,665

OpenStudy (anonymous):

it probally is

OpenStudy (anonymous):

There first term is -1 and common ratio is -6

OpenStudy (anonymous):

Now, can u use Sum of nth terms of Geometric seires formula

OpenStudy (anonymous):

So basically -1 + 6 - 36 + 216 - 1296 +7776.

OpenStudy (anonymous):

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