Manipal MET2018MathematicsInverse Trigonometric Functions
⁻¹ 1 5 + ⁻¹ 3 10 is equal to
Options
- A/ 6
- B/ 4
- C/ 3
- D2 / 3
Correct answer
B. / 4
Step-by-step solution
⁻¹ 1 5 + ⁻¹ 3 10 Now, ⁻¹ 1 5 = ⁻¹ ( 1 / 5 1- 1 5 )= ⁻¹ 1 2 and ⁻¹ 3 10 = ⁻¹ ( 1- 9 10 3 10 )= ⁻¹ 1 3 ⁻¹ 1 2 + ⁻¹ 1 3 = ⁻¹ ( 1 2 + 1 3 1- 1 6 )= ⁻¹(1)= 4