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Mathematics, 16.09.2019 07:30 shayleewright

Find the sum of the geometric sequence –3, 15, –75, 375, … when there are 8 terms and select the correct answer below.
a.) –195,312
b.) 195,312
c.) 292,968
d.) –292,968
i need i had solved this question and i got the answer b but i want to make sure i am correct.

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