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NDA2010MathematicsInverse Trigonometric FunctionsActual

What is the value of ⁻¹ 4 5 +2 ⁻¹ 1 3 ?

Options

  1. A3
  2. B2
  3. C4
  4. D6

Correct answer

B. 2

Step-by-step solution

2 ⁻¹ ( 1 3 )= ⁻¹ 2 3 1- 1 9 = ⁻¹ 3 4 Also ⁻¹ 4 5 = ⁻¹ 4 3 = ⁻¹ 3 4 ⁻¹ 3 4 + ⁻¹ 3 4 = 2

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