Domain and Range of 6 Trig Functions
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Cos
Domain: All real numbers Range: [-1,1]
Sin
Domain: All real numbers Range: [-1,1]
CSC
Domain: All real numbers except K(Pi) where K is an integer Range: (-infinity, -1] U [1, infinity)
CoT
Domain: All real numbers except K(Pi) where K is an integer Range: all real numbers
SEC
Domain: All real numbers except K(Pi)/2 where K is an odd integer Range: (-infinity, -1] U [1, infinity]
Tan
Domain: All real numbers except value of K(Pi)/2 where K is an odd integer Range: all real numbers