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25-10-2016
Mathematics

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What is the missing term in this geometric sequence? …, –32, ____, –128, …

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crisforp crisforp

25-10-2016

We have x/(-32) = (-128)/x; where x < 0 ; x is the missing term;
Then, x^2 = 4096;
Finally, x = -[tex] \sqrt{4096} [/tex];
x = -64;

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