monzzerat monzzerat
  • 26-05-2021
  • Mathematics
contestada

2. Find the sum of the 7th term of the
geometric series. 3+1+1/3+ ...
How do I find it, must show work

Respuesta :

valdana350
valdana350 valdana350
  • 26-05-2021

Answer:

sum

In the given G.S., we have,

a

=

the

1

s

t

term

=

3

,

& the common ratio

r

=

−

6

3

=

−

2

Hence, the sum

S

n

of its first

n

terms is given by,

S

n

=

a

(

1

−

r

n

)

1

−

r

∴

The Reqd. Sum S_7

=

3

(

1

−

(

−

2

)

7

)

1

−

(

−

2

)

=

3

(

1

+

128

)

3

=

129

Answer Link

Otras preguntas

What is the answer to this : Expand y(y + 10)
If my equation was 160x7+5x3+68 where would I put my parenthesis?
War and military build-up help the economy of a country by lowering: A. Unemployment B. Taxes C. Production D. Inflation
how do you seperate iron filings, sand, and sugar?
Simplify 3(2x - 5). -6x - 15 6x - 15 6x - 8 5x - 2
Which sentence states an important theme of “Kubla Khan”? a. Nature has supernatural powers. b. There is a powerful contrast between sun and ice. c. Human being
Which of the following instruments is used to measure air pressure? A. Thermometer B. Barometer C. Hygrometer D. Anemometer
-4x -2(8x =1)=-(2x - 10)
how do you seperate iron filings, sand, and sugar?
Put these in order of size smallest first 0.5 75% 2/3