lichwajason lichwajason

29-11-2018
Mathematics

contestada

What is the 12th term of the geometric sequence? 5, 15,15

Respuesta :

Vanitha1412 Vanitha1412

29-11-2018

Answer:

S12=855735

Step-by-step explanation:

if the 3rd term is 45 then,

formula: Sn=ar^n-1

S12=5*3^12-1

S12=5*3^11

S12=5*177147

S12=855735

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