BITSAT2014MathematicsInverse Trigonometric FunctionsActual
Find the value of [2 ⁻¹ 1 5 - 4 ]
Options
- A-1 / 3
- B-7 / 17
- C-1 / 2
- D-1 / 4
Correct answer
B. -7 / 17
Step-by-step solution
aligned & 2 ⁻¹ 1 5 = ⁻¹ 1 5 + ⁻¹ 1 5 &= ⁻¹ 1 5 + 1 5 1- 1 5 1 5 = ⁻¹ 2 / 5 24 / 25 = ⁻¹ 5 12 &= (2 ⁻¹ 1 5 - 4 )= ( ⁻¹ 5 12 - 4 ) &= ( ⁻¹ 5 12 )- 4 1+ ( ⁻¹ 5 12 ) 4 = - 7 12 17 12 =- 7 17 aligned