Write an explicit rule for this sequence.

Mathematics
Tutor: None Selected Time limit: 1 Day

It is defined recursively by the equations a1=3 and ak= (-2)(ak-1), 

Mar 1st, 2015

a1 = 3

a2 = (-2)(3) = -6

a3 = (-2)(-6) = 12 


an = 3(-2)n


Mar 1st, 2015

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