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99 Percentile Qs Bank for JEE MainMathematicsInverse Trigonometric Functions

^2 ( ⁻¹ 2 )+ cosec ^2 ( ⁻¹ 3 ) is equal to

Options

  1. A3
  2. B10
  3. C15
  4. D20

Correct answer

C. 15

Step-by-step solution

aligned & [ ( ⁻¹ 2 ) ]^2+ [ cosec ( ⁻¹ 3 ) ]^2 & = [ ⁻¹ 5 ]^2+ [ cosec cosec ⁻¹ 10 ]^2 & =5+10=15 aligned

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