MHT CET202523 Apr 2025Morning ShiftMathematicsInverse Trigonometric FunctionsActual
The value of ^2 ( ⁻¹ 4 )+ ^2 ( cosec ⁻¹ 3 ) is
Options
- A15
- B25
- C23
- D7
Correct answer
C. 23
Step-by-step solution
Evaluate E = ^2( ⁻¹ 4) + ^2( ⁻¹ 3) . Let = ⁻¹ 4 , so = 4 . Using ^2 = ^2 - 1 , we find ^2( ⁻¹ 4) = 4^2 - 1 = 15 . Let = ⁻¹ 3 , so = 3 . Using ^2 = ^2 - 1 , we obtain ^2( ⁻¹ 3) = 3^2 - 1 = 8 . Therefore, E = 15 + 8 = 23 . Final answer: 23