If the fourth term in a geometric sequence is -1 and the common ratio is - 1, find the explicit formula of the sequence. OA) an = (1) · (1)" - 1 for n 2 2 B) an = (1) · (-1)- 1 for na 1 olan C) an =(-1) - (-1)" - 1 for n< 1 OD an= (- 1) - (1) - 1 for n 1

If the fourth term in a geometric sequence is -1 and the common ratio is - 1, find the explicit formula of the sequence. OA) an = (1) · (1)" - 1 for n 2 2 B) an = (1) · (-1)- 1 for na 1 olan C) an =(-1) - (-1)" - 1 for n< 1 OD an= (- 1) - (1) - 1 for n 1

Step-by-step explanation:

If the fourth term in a geometric sequence is -1 and the common ratio is - 1, find the explicit formula of the sequence. OA) an = (1) · (1)" - 1 for n 2 2 B) an = (1) · (-1)- 1 for na 1 olan C) an =(-1) - (-1)" - 1 for n< 1 OD an= (- 1) - (1) - 1 for n 1

I have no answer. but I think the other person got it right.

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