Graphs of Basic (Parent) Trigonometric Functions
sine, cosine, secant and cosecant, period L 2π; for tangent and cotangent, period L π. For the general function, B : T ;, defined above, period L n _ p c l r r c p g m b F. Frequency Frequency is most useful when used with the sine and cosine functions. It is the reciprocal of the period, i.e.,
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