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AP EAMCET2007MathematicsInverse Trigonometric Functions

sech ⁻¹( ) is equal to

Options

  1. A2
  2. B2
  3. C2
  4. D2

Correct answer

D. 2

Step-by-step solution

We have, sech ⁻¹( ) aligned & = h⁻¹( cosec ) & = [ cosec + ( cosec ^2 -1 ) ] & = 2 aligned

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