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AP EAMCET201823 Apr 2018Evening ShiftMathematicsInverse Trigonometric FunctionsActual

sech ^2 ( ⁻¹ 1 2 )+ cosech ^2 ( coth ⁻¹ 3 )=

Options

  1. A35 9
  2. B3 2
  3. C25 4
  4. D35 4

Correct answer

D. 35 4

Step-by-step solution

aligned & sech ^2 ( ⁻¹ 1 2 )+ cosech ^2 ( h⁻¹(3) ) & = sech ^2 ( sech ⁻¹ ( 3 2 ) )+ cosech ^2 ( cosech ⁻¹ 8 ) & = 3 4 +8= 35 4 aligned

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