In figure below, object (A) is 12000 units above the x axis and moving to the left with a constant speed. The observer (R), on the x axis, sees that the object (A) is 30° above the horizon and its angle is increasing degrees each second. What is the speed of object A? 12,000

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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.