MHT CET202519 Apr 2025Evening ShiftMathematicsInverse Trigonometric FunctionsActual
If ( ⁻¹ 1 5 + ⁻¹ x )=1 , then the value of x is
Options
- A1 5
- B1
- C0
- D- 1 5
Correct answer
A. 1 5
Step-by-step solution
Given that ( ⁻¹ 1 5 + ⁻¹ x ) = 1 , the argument must satisfy ⁻¹ 1 5 + ⁻¹ x = 2 . Using the identity ⁻¹ y + ⁻¹ y = 2 for y [-1, 1] , we identify x = 1 5 . Since 1 5 lies within the domain of ⁻¹ x , this solution is valid.