aalen7Mamirstermari aalen7Mamirstermari
  • 20-10-2016
  • Mathematics
contestada

Write the recursive formula for the geometric sequence. a1 = -2 a2 = 8 a3 = -32
a. an = -4 an-1
b. an = -2 an-1
c. an = -2 • an-1
d. an = -4 • an-1

Respuesta :

nobillionaireNobley
nobillionaireNobley nobillionaireNobley
  • 26-10-2016
a1 = -2
a2 = 8 = -4 x -2 = -4a1
a3 = -32 = -4 x 8 = -4a2

Therefore, an = -4 * an-1
Answer Link
tazsargent123 tazsargent123
  • 18-06-2018
an = -4 + an-1
This is the answer, Hope it helps!
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