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AP EAMCET202420 May 2024Morning ShiftMathematicsInverse Trigonometric FunctionsActual

4 ⁻¹ 1 5 - ⁻¹ 1 70 + ⁻¹ 1 99 =

Options

  1. A12
  2. B6
  3. C4
  4. D3

Correct answer

C. 4

Step-by-step solution

4 ⁻¹ ( 1 5 )- ⁻¹ ( 1 70 )+ ⁻¹ ( 1 99 )=2 ⁻¹ ( 2 5 .1- 1 25 ) ) - ⁻¹ ( 1 70 - 1 99 1+ ( 1 70 ) ( 1 99 ) )=2 ⁻¹ 5 12 - ⁻¹ 29 6931 = ⁻¹ ( 5 6 1- 25 144 )- ⁻¹ 1 239 = ⁻¹ 120 119 - ⁻¹ 1 239 = ⁻¹ 1= 4

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