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Evaluate each of the following:
tan–1 (tan 1)
As, tan–1(tan x) = x
Provided x ϵ
⇒ tan–1(tan1)
= 1
sin–1(sin3)
sin–1(sin4)
sin–1 (sin12)
sin–1 (sin 2)
cos–1(cos 3)
cos–1(cos 4)
cos–1(cos 5)
cos–1(cos 12)
tan–1 (tan 2)
tan–1 (tan 4)
tan–1 (tan 12)
Write each of the following in the simplest form: