justmadi1392 justmadi1392

08-07-2016
Mathematics

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-3, 6, -9, 12, -15, . . . Which of the following represents the general term for the sequence given?

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08-07-2016

Hello,

[tex] u_{1}=-3=(-1)^1*3*1\\ u_{2}=6=(-1)^{2}*3*2\\ u_{3}=-9=(-1)^{3}*3*3\\ u_{4}=12=(-1)^{4}*3*4\\ u_{n}=(-1)^{n}*3*n\\ [/tex]

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