chrisboston75 chrisboston75
  • 18-05-2020
  • Mathematics
contestada

What is the sum of the infinite geometric series?
-3-3/2-3/4-3/8-3/16-....

Respuesta :

jimrgrant1 jimrgrant1
  • 18-05-2020

Answer:

- 6

Step-by-step explanation:

The sum to infinity of a geometric series is calculated as

S( infinity ) = [tex]\frac{a}{1-r}[/tex]

where a is the first term and r the common ratio

Here a = - 3 and r = - [tex]\frac{3}{2}[/tex] ÷ - 3 = [tex]\frac{1}{2}[/tex], thus

S( infinity ) = [tex]\frac{-3}{1-\frac{1}{2} }[/tex] = [tex]\frac{-3}{\frac{1}{2} }[/tex] = - 6

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