Seudónimo Seudónimo
  • 20-08-2017
  • Mathematics
contestada

Find an equation for the nth term of the sequence.

-4, -16, -64, -256, ...

Respuesta :

Аноним Аноним
  • 20-08-2017
this is a geometric sequence  with first term a1 = -4 and common ratio r = 4

so nth term  = a1* r^(n-1)

                   = -4 *4^(n-1)
Answer Link
koziadam koziadam
  • 20-08-2017
Common ratio = 4
Starts at -4

So the equation is n = -4 *4^(n-1)

Answer Link

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