muraclfor muraclfor
  • 23-06-2021
  • Mathematics
contestada

find the fourth term of a geometric sequence if a=6 and r=2. Use the formula an=ar^n-1

find the fourth term of a geometric sequence if a6 and r2 Use the formula anarn1 class=

Respuesta :

raghavdev159
raghavdev159 raghavdev159
  • 23-06-2021

Answer:

48

Step-by-step explanation:

here, we are using an = ar^n-1

so, we have to find a4= ar^4-1 = ar^3

now, putting the given values in the equation,

a4= (6)(2)^3 = 6(8) = 48

therefore, the 4th term is 48.

I have done this question previously on Gauthmath app, you can check that app out, really cool app.

All the best with your exam.

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