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NDA 2010
Exam
NDA
Year
2010
Subject
Mathematics
Chapter
Sequences and Series

NDA 2010 · Mathematics · Sequences and Series

Let a, b, c be in AP. Consider the following statements: I. (1)/(a...

Let a,b,ca, b, c be in AP. Consider the following statements: I. 1ab,1ca,1bc\frac{1}{a b}, \frac{1}{c a}, \frac{1}{b c} are in AP. II. 1b+c,1c+a,1a+b\frac{1}{\sqrt{b}+\sqrt{c}}, \frac{1}{\sqrt{c}+\sqrt{a}}, \frac{1}{\sqrt{a}+\sqrt{b}} are in AP. Which of the statements given above is/are correct?

Options

  1. AI only
  2. BII only
  3. CBoth I and II
  4. DNeither I nor II

Correct answer

A. I only

Step-by-step solution

The correct answer is option (A).
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