AP EAMCET2009MathematicsInverse Trigonometric Functions
aligned ⁻¹ ( -1 2 )-2 ⁻¹ ( 1 2 ) & +3 ⁻¹ ( -1 2 ) & -4 ⁻¹(-1) equals aligned
Options
- A19 12
- B35 12
- C47 12
- D43 12
Correct answer
D. 43 12
Step-by-step solution
aligned & ⁻¹ (- 1 2 )-2 ⁻¹ ( 1 2 )+3 ⁻¹ ( array r .- 1 2 ) -4 ⁻¹(-1) array . & = - ⁻¹ ( 1 2 )-2 ( 6 )+3 ( - ⁻¹ ( 1 2 ) ) & +4 ⁻¹(1) & = - 3 - 3 +3 ( - 4 )+4 4 & = 3 +3 3 4 + & = 43 12 aligned