JEE Main202628 January 2026Evening ShiftMathematicsInverse Trigonometric FunctionsActual
Considering the principal values of inverse trigonometric functions, the value of the expression (2 ⁻¹ ( 2 13 )-2 ⁻¹ ( 3 10 ) ) is equal to :
Options
- A16 63
- B- 33 56
- C- 16 63
- D33 56
Correct answer
D. 33 56
Step-by-step solution
Let = ⁻¹ ( 2 13 ) . Then = 2 13 , = 3 13 , = 2 3 . So (2 ) = 2 2 3 1 - 4 9 = 12 5 . Let = ⁻¹ ( 3 10 ) . Then = 3 10 , = 1 10 , = 1 3 . So (2 ) = 2 1 3 1 - 1 9 = 3 4 . Therefore (2 - 2 ) = 12 5 - 3 4 1 + 12 5 3 4 = 33 20 56 20 = 33 56