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What are the values of a1 and r of the geometric series? 2 – 2 2 – 2 2 a1 = 2 and r = –2 a1 = –2 and r = 2 a1 = –1 and r = 2 a1 = 2 and r = –1.

Sagot :

The values of [tex]\rm a_1[/tex] is 2 and r are -1 of the geometric series and it can be determined by using geometric summation operation.

Given

The following geometric series:

2 – 2 + 2 – 2 + 2

What is geometric series?

The geometric series is the first term of the geometric sequence and r is the common ratio of the geometric series.

The first term of the given geometric series is 2.

And the common difference in the given geometric series is;

[tex]\rm r=\dfrac{a_2}{a_1}[/tex]

Where [tex]\rm a_1[/tex] is the first term of the geometric sequence and [tex]\rm a_2[/tex] is the second term of the geometric sequence.

Then,

The common difference in the given geometric series is,

[tex]\rm r=\dfrac{a_2}{a_1}\\\\r=\dfrac{-2}{2}\\\\r=1[/tex]

The common ratio in the given geometric series is -1.

Hence, the value of [tex]\rm a_1[/tex] is 2 and r are -1 of the geometric series

For more details about Geometric progression refer to the link given below.

brainly.com/question/25959517

Answer:

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Step-by-step explanation:

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