saltypears
saltypears saltypears
  • 26-02-2019
  • Mathematics
contestada

Identify the following series as arithmetic, geometric, both, or neither.

A) Arithmetic
B) Geometric
C) Both
D) Neither

Identify the following series as arithmetic geometric both or neither A Arithmetic B Geometric C Both D Neither class=

Respuesta :

hilljade45 hilljade45
  • 26-02-2019

Answer:

b

Step-by-step explanation:

Answer Link
RenatoMattice RenatoMattice
  • 21-05-2019

Answer: First Option  is correct.

Step-by-step explanation:

Since we have given that

[tex]\sum_{n=1}^{n=\infty}(3+an)[/tex]

Here, a = 3

So, our sequence becomes,

[tex]3+a,3+2a,3+3a,................[/tex]

So, we can see that there is a common difference i.e. 'd'.

[tex]d=a_2-a_1=3+2a-(3+a)=3+2a-3-a=a[/tex]

So, it becomes an arithmetic progression.

Hence, First Option is correct.

Answer Link

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