Consider a circle of radius 8 and a point Protating around it as shown in the figure to the left below. theta(t) theta(t) The angle e, in radians, is given as a function of sime t. by the graph n the second figure. (a) What is the value of e when t= 1? (b) Find the coordinates of P when t =1 Coordinates (

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Ratios

A ratio is a comparison between two numbers of the same kind. It represents how many times one number contains another. It also represents how small or large one number is compared to the other.

Trigonometric Ratios

Trigonometric ratios give values of trigonometric functions. It always deals with triangles that have one angle measuring 90 degrees. These triangles are right-angled. We take the ratio of sides of these triangles.