taeboog2
taeboog2 taeboog2
  • 22-04-2020
  • Mathematics
contestada

Evaluate the geometric series. I need help please!!

Evaluate the geometric series I need help please class=

Respuesta :

jimrgrant1 jimrgrant1
  • 22-04-2020

Answer:

4092

Step-by-step explanation:

The n th term of a geometric series is

[tex]a_{n}[/tex] = a[tex](r)^{n-1}[/tex]

where a is the first term and r the common ratio

4[tex](2)^{n-1}[/tex] ← is the n th term

with a = 4 and r = 2

The sum to n terms of an arithmetic series is

[tex]S_{n}[/tex] = [tex]\frac{a(r^n-1)}{r-1}[/tex], thus

[tex]S_{10}[/tex] = [tex]\frac{4(2^{10}-1) }{2-1}[/tex]

     = 4(1024 - 1) = 4 × 1023 = 4092

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