AP EAMCET202420 May 2024Morning ShiftMathematicsInverse Trigonometric FunctionsActual
4 ⁻¹ 1 5 - ⁻¹ 1 70 + ⁻¹ 1 99 =
Options
- A12
- B6
- C4
- D3
Correct answer
C. 4
Step-by-step solution
4 ⁻¹ ( 1 5 )- ⁻¹ ( 1 70 )+ ⁻¹ ( 1 99 )=2 ⁻¹ ( 2 5 .1- 1 25 ) ) - ⁻¹ ( 1 70 - 1 99 1+ ( 1 70 ) ( 1 99 ) )=2 ⁻¹ 5 12 - ⁻¹ 29 6931 = ⁻¹ ( 5 6 1- 25 144 )- ⁻¹ 1 239 = ⁻¹ 120 119 - ⁻¹ 1 239 = ⁻¹ 1= 4