tgranahan86 tgranahan86
  • 21-10-2018
  • Mathematics
contestada

What is the sum of an infinite geometric series if the first term is 156 and the common ratio is 2⁄3?

Respuesta :

kudzordzifrancis
kudzordzifrancis kudzordzifrancis
  • 27-07-2019

Answer:

The sun of the infinite geometric series is 468

Step-by-step explanation:

The sum of an infinite geometric series is given by;

[tex]S_{\infty} = \frac{a}{1 - r} [/tex]

where a=156 is the first term and

[tex]r = \frac{2}{3} [/tex]

is the common ratio.

We substitute these values into the above formula to get:

[tex]S_{\infty} = \frac{156}{1 - \frac{2}{3} } [/tex]

[tex]S_{\infty} = \frac{156}{ \frac{1}{3} } [/tex]

[tex]S_{\infty} =156 \times 3[/tex]

[tex]S_{\infty} = 468[/tex]

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