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

asked Oct 10, 2017 18.4k views

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5 votes

Hello,

$u_(1)=-3=(-1)^1*3*1\\ u_(2)=6=(-1)^(2)*3*2\\ u_(3)=-9=(-1)^(3)*3*3\\ u_(4)=12=(-1)^(4)*3*4\\ u_(n)=(-1)^(n)*3*n\\$

ABarrier answered Oct 15, 2017

8.2k points

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