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trigonometric ratio, expressed as opposite side divided by hypotenuse.
(also called compound increase) growth at a certain rate of change that is calculated...
a cone with the line from the vertex to the centre of the base perpendicular to the base.
a number which combined with its inverse results in the identity 1, e.g. 4 × ¼ = 1.
involving an equal likelihood that each outcome may occur.