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NDA 2010
Exam
NDA
Year
2010
Subject
Mathematics
Chapter
Inverse Trigonometric Functions

NDA 2010 · Mathematics · Inverse Trigonometric Functions

What is the principal value of cosec^ -1 ( 2 ) ?

What is the principal value of cosec⁡−1(2)\operatorname{cosec}^{-1}(\sqrt{2}) ?

Options

  1. Aπ4\frac{\pi}{4}
  2. Bπ2\frac{\pi}{2}
  3. C−π4-\frac{\pi}{4}
  4. D0

Correct answer

C. −π4-\frac{\pi}{4}

Step-by-step solution

The correct answer is option (C).
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