Question 169711 • IC Pre-Cal - Deering
The inverse cotangent is conventionally defined with range (0, π), so it never equals 0 and has neither a minimum nor a maximum. Its domain is all real numbers, since cotangent takes every real value on its standard one-to-one interval. It is decreasing, not increasing; and the range is not [0, π] because 0 and π are excluded.
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