uwrongboi uwrongboi

05-07-2017
Mathematics

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Which is a possible expression for the series
–6 –12 –24 –48 –96 –192

Which is a possible expression for the series 6 12 24 48 96 192 class=

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mreijepatmat mreijepatmat

05-07-2017

We notice that ; -6, -12, -24, -48 , 96, -19 is a geometric progression with r = -2
which is : -3(2), -3(4), -3(8), -3(16). -3(32), -3(32)
OR -3(2), -3(2²) -3(2³), -3(2⁴), -3(2⁵), -3(2⁶)

That is:
₆
Σ (-3)(2)^k
k=₁

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