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

Question

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 6).

Philoid · Accepted Answer

Given cos^-1 (cos 6)

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

= 2π – 6

∴ cos^-1 (cos 6) = 2π - 6