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functions of an angle that relate the size of the angle to the length of the sides of a triangle. The functions sine, cosine and tangent are the most important functions in this group.
the angle that a line makes with the positive x-axis measured in an anticlockwise...
a statistical average; the sum of all the values divided by the number of values.
the notation (standardised set of rules and symbols) that allows us to describe an interval (of...