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What is the sum of the first six terms of the geometric series?
2-6+18-54+

Sagot :

Medunno13

Answer: -364

Step-by-step explanation:

This is a geometric sequence with first term 2, common ratio -3, and 6 terms.

[tex]S_{6}=\frac{2(1-(-3)^{6}}{1-(-3)}=\boxed{-364}[/tex]

View image Medunno13
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