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NDA2011MathematicsTrigonometric Ratios & IdentitiesActual

Which one of the following statements is correct?

Options

  1. A^2 30^ , ^2 45^ , ^2 60^ are in GP
  2. B^2 30^ , ^2 45^ , ^2 60^ are in GP
  3. C^2 30^ , ^2 45^ , ^2 60^ are in AP
  4. D^2 30^ , ^2 45^ , ^2 60^ are in GP

Correct answer

D. ^2 30^ , ^2 45^ , ^2 60^ are in GP

Step-by-step solution

The correct answer is option (D).

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