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MHT CET202314 May 2023Evening ShiftMathematicsInverse Trigonometric FunctionsActual

The value of ⁻¹ ( 1 8 )+ ⁻¹ ( 1 2 )+ ⁻¹ ( 1 5 ) is

Options

  1. A6
  2. B4
  3. C3
  4. D2

Correct answer

B. 4

Step-by-step solution

aligned & ⁻¹ ( 1 8 )+ ⁻¹ ( 1 2 )+ ⁻¹ ( 1 5 ) & = ⁻¹ ( 1 8 )+ ⁻¹ ( 1 2 + 1 5 1- 1 2 1 5 ) & = ⁻¹ ( 1 8 )+ ⁻¹ ( 7 9 ) & = ⁻¹ ( 1 8 + 7 9 1- 1 8 7 9 ) & = ⁻¹ ( 72 65 72 9 ) & = ⁻¹(1) & = 4 aligned

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