Question

Use a calculator to find the values of the inverse trigonometric functions. Round to the nearest degree.

sin–1 (two-thirds) =
°

tan–1(4) =
°

cos–1(0.1) =
°

Answer 1

sin⁻¹(2/3) ≈ 42°

tan⁻¹(4) ≈ 76°

cos⁻¹(0.1) ≈ 84°