Sec, Cosec, Cot

Sec, Cosec, Cot

Sec, Cosec, Cot

Secant, cosecant and cotangent

secant x or sec x =     1    
                             cos x

cosecant x, or cosec x =    1   
                                   sin x

cotangent x, or cot x =   1   
                                tan x

Note, sec x is not the same as arccos x.

Example:
If sec x = 2, cos x = ½, x = 60º
Graphs of sec x and cosec x

Trigonometry

Compound angle formulae

Compound angle formulae

Trigonometry

Pythagorean identities

Pythagorean identities

Trigonometry

Radians

Radians

Trigonometry

Sin, Cos, Tan

Sin, Cos, Tan

Trigonometry

Sine and cosine formulae

Sine and cosine formulae