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MHT CET20225 Aug 2022Morning ShiftMathematicsInverse Trigonometric FunctionsActual

⁻¹ 1 3 + ⁻¹ 1 5 + ⁻¹ 1 7 + ⁻¹ 1 8 has the value

Options

  1. A4
  2. B6
  3. C2
  4. D3

Correct answer

A. 4

Step-by-step solution

aligned & ⁻¹ 1 3 + ⁻¹ 1 5 + ⁻¹ 1 7 + ⁻¹ 1 8 & = ⁻¹ ( 1 3 + 1 5 1- 1 3 1 5 )+ ⁻¹ ( 1 7 + 1 8 1- 1 7 1 8 ) & = ⁻¹ ( 4 7 )+ ⁻¹ ( 3 11 ) & = ⁻¹ ( 4 7 + 3 11 1- 4 7 3 11 ) aligned = ⁻¹ ( 65 65 )= ⁻¹(1)= 4

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