Hi, 

geometric sequence:   R= -4  

 

 

 

 

 

 

first five terms of the sequence are: 5,-20,80,-320, 1280,... 

Answer by stanbon(75887)   (Show Source): You can put this solution on YOUR website!
 The first term and common ratio of a geometric sequence is given below. What are the first five terms of the sequence? a1=5 R= -4 Hint an= a1r^n-1

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5

5*(-4) = -20

(-20)*(-4) = 80

80*(-4) = -320

(-320)(-4) = 1280

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Cheers,

Stan H.

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