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Miscellaneous·2011·Easy

Consider the following : 1. cosec⁻¹(–2/√3) = –π/3 2. sec⁻¹(2/√3) = π/6 Which of the above is/are correct?

Consider the following :

1. cosec⁻¹(–2/√3) = –π/3

2. sec⁻¹(2/√3) = π/6

Which of the above is/are correct?

Options

  1. a.

    1 only

  2. b.

    2 only

    Correct answer
  3. c.

    Both 1 and 2

  4. d.

    Neither 1 nor 2

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