What is the value of cot(arccot-3.2))?

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what is the value of cot(arccot-3.2))?

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Answer 1 · 2016-01-31T20:39:55

It is #-3.2#.

# "arccot" (-3.2) = theta#

where

#theta# is in the appropriate interval (I am used to #theta in (o,pi)#.) and #cot theta = -3.2#

So, #cot("arcccot" -3.2) = -3.2#