Answer each of the following questions in one word or one sentence or as per exact requirement of the question:

Write the value of cos^–1(cos 350°) – sin^–1(sin 350°).

Given cos^-1 (cos 350°) – sin^-1 (sin 350°)

= cos^-1 [cos (360° - 10°)] – sin^-1 (sin (360° - 10°)]

We know that cos (2π – θ) = cos θ and sin (2π – θ) = -sin θ

= cos^-1 (cos 10°) – sin^-1 (-sin 10°)

We know that cos^-1 (cos θ), if θ ∈ [0, π] and sin (-θ) = -sin θ

= 10° - sin^-1 (sin (-10°))

We know that sin^-1 (sin θ) = θ, if θ ∈ [-π/2, π/2]

= 10° - (-10°)

= 10° + 10°

= 20°

∴ cos^-1 (cos 350°) – sin^-1 (sin 350°) = 20°