If a, b, c are in GP where a > 0, b > 0, c > 0, then which of the following are correct?

1.a², b², c² are in GP

2.1/a, 1/b, 1/c are in GP

3.√a, √b, √c are in GP

Select the correct answer using the code given below:

Mathematics 2022 NDA Mathematics 2022 NDA 2022

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