JEE Main2008MathematicsInverse Trigonometric FunctionsActual
The value of ( cosec ⁻¹ 5 3 + ⁻¹ 2 3 ) is
Options
- A6 17
- B3 17
- C4 17
- D5 17
Correct answer
A. 6 17
Step-by-step solution
aligned & Let E= ( cosec ⁻¹ 5 3 + ⁻¹ 2 3 ) & E= ( ⁻¹ ( 3 4 )+ ⁻¹ ( 2 3 ) ) & E= ( ⁻¹ ( 3 4 + 2 3 1- 3 4 2 3 ) ) & E= ( ⁻¹ 17 6 )= 6 17 . aligned