NDA Math Sequences and Series

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Question : 13 of 79

Marks: +1, -0

If ‌

1

b+c

,‌

1

c+a

,‌

1

a+b

are in HP, then which of the following is/are correct?
1. a,b,c are in AP
2. (b+c)2,(c+a)2,(a+b)2 are in GP.

Select the correct answer using the code given below.

[NDA-II 2021]

1 only
2 only
Both 1 and 2
Neither 1 nor 2

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