Question

What are the values of a and r of the geometric series?

2 - 2 + 2 - 2 + 2
aj = 2 and r = -2
ai = -2 and r= 2
ai = -1 and r = 2
aj = 2 and r = -1

Answer 1

Explanation:

a denotes the first term of the geometric series.

a = 2

r denotes the ratio between second term and the first term.

r = -2/2 = -1

last option is the correct answer.

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