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pinayflixvidjakol|Vidjakol : Cebu Watch hottest collections of Vidjakol sex videos on PinayFlix TV. If you like watching Vidjakol videos, click here now. Tutorial on the properties of trigonometric functions. Properties of Trigonometric Functions. The properties of the 6 trigonometric functions: sin (x), cos (x), tan(x), cot (x), sec (x) and csc (x) are discussed. These include the graph, domain, range, asymptotes (if any), symmetry, x and y intercepts and maximum and minimum points.