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.
The angle of elevation theta of the sun in the sky any latitude L is calculated with the formula sin theta = cos D cos L cos omega + sin D sin L. omega is the number of radians that the Earth has rotated through since noon when omega = 0. D is the declination of the sun. Westville has latitude L = 36.5 degree. Find the angle of elevation theta in degrees of the sun at 3 PM on February 29, 2012, where at that time D alpha -0.1425 and omega alpha 0.7854. a 28.6^degree B 9.8^degree C 27.4^degree D 0.5^degree
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