Write the value of cos–1 (cos 6). – InterviewSolution

1.

Write the value of cos–1 (cos 6).

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

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