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is a trigonometric ratio defined as the adjacent side divided by the hypotenuse.
non-terminating, non-recurring fractions. The set of irrational numbers is a subset of the real...
the complete set of independent variables (x-values) that are possible for a given...
a function that produces the size of an angle, given one of the angle's trigonometric ratios: If...
a set that contains elements that are all part of a larger set (which contains other elements...