MelDinero MelDinero

02-01-2017
Mathematics

contestada

Find the 15th term of the geometric sequence 3,−12,48,.

Respuesta :

Apocrophon Apocrophon

02-01-2017

f(x) = 3 * (-4)^n
f(15) = 3 * (-4)^15
f(15) = 3(-1073741824)
f(15) = -3 221 225 472

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petermcdonald617 petermcdonald617

02-01-2017

805306368
The answer is 3 x (-4)^14
So if odd it's negative 15 position has exponential of 14 because we start with 0

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