JEE Main202523 Jan 2025Morning ShiftMathematicsTrigonometric Ratios & IdentitiesActual
If 2 x 3 4 , then ⁻¹ ( 12 13 x+ 5 13 x ) is equal to
Options
- Ax- ⁻¹ 4 3
- Bx+ ⁻¹ 4 5
- Cx- ⁻¹ 5 12
- Dx+ ⁻¹ 5 12
Correct answer
C. x- ⁻¹ 5 12
Step-by-step solution
aligned & 12 13 x+ 5 13 x & Let = 5 12 , (0, 2 ) & = 5 13 , = 12 13 aligned aligned & 12 13 x+ 5 13 x= x+ x & = (x- ) & ⁻¹[ (x- )]=x- & =x- ⁻¹ ( 5 12 ) aligned