NDA2010MathematicsInverse Trigonometric FunctionsActual
What is the value of ⁻¹ 4 5 +2 ⁻¹ 1 3 ?
Options
- A3
- B2
- C4
- 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