Question

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

Answer 1

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\\`