As per your syllabus, is 1, −1, 1, −1, 1,... a GP — and what is the co…

Question

As per your syllabus, is 1, −1, 1, −1, 1,... a GP — and what is the common ratio?

Accepted Answer

B. Yes, with common ratio r = −1 (alternating signs)

As per your syllabus, −1/1 = 1/(−1) = −1. Common ratio r = −1, producing alternating signs.

Answer

No, sequences can't have negative ratios

Answer

Yes, with r = 1

Answer

This isn't a sequence at all

As per your syllabus, is 1, −1, 1, −1, 1,... a GP — and what is the common ratio?