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sin0
=o/h
cos0
=a/h
tan0
=o/a
csc0
=h/o
sec0
=h/a
cot0
=a/o
Period of tan
Pi/k
Period of cot
Pi/k
Period of sin
2pi/k
Period of cos
2pi/k
Period of sec
2pi/k
Period of csc
2pi/k
Graph of sec
Graph of csc
Graph of tan
Graph of cot