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tan, sin, csc, cot
Odd trig finction with pi(k),

cos, sec
Even trig functions with 2(pi)(k)

Graph: sin
Domain: all real numbers
Range: 1, 1 (closed)

Graph: cos
Domain: all real numbers
Range: 1,1 (closed)

Graph: csc
Domain: all real numbers, expect that theta = (pi)k; k any integer
Range: infinity (open) to 1 (close) Union 1 (closed) to +infinity (open)

Graph: sec
Domain: all real numbers, expect that theta = (pi/2)k; k any odd integer
Range: infinity (open) to 1 (close) Union 1 (closed) to +infinity (open)

Graph: tan
Domain: all real numbers, expect that theta = (pi/2)k; k any odd integer
Range: all real numbers

Gaph: cot
Domain: all real numbers, expect that theta = (pi)k; k an integer
Range: all real numbers

Graph: sin^{1}
Domain: [1 , 1]
Range: [pi/2 , pi2]

Graph: cos^{1}
Domain: [1 , 1]
Range: [0 , pi]

Graph: tan^{1}
Domain: all real numbers
Range: ( pi/2 , pi/2)

Graph: cot^{1}
Domain: all real numbers
Range: (0 , pi)

Graph: sec^{1}
Domain: (infinity , 1] U [1 , +infinity)
Range: [0 , pi] NOT including pi/2

Graph: csc^{1}
Domain: (infinity , 1] U [1 , +infinity]
Range: [pi/2 , pi/2] NOT including 0

Double Angle Foumula:
sin(2x) =
2sin(x)cos(x)

Double Angle Formula:
cos^{2}(x)  sin^{2}(x)
2cos^{2}(x)  1

Derivative: sin(x)
cos(x)

Derivative: cos(x)
sin(x)

Derivative: tan(x)
sec^{2}(x)

Derivative: cot(x)
csc^{2}(x)

Derivative: sec(x)
sec(x)tan(x)

Derivative: csc(x)
csc(x)cot(x)

Double Angle Formula:
cos(2x)
12sin^{2}(x)

