Successfully working through trigonometry problems requires knowledge of the properties of triangles as well as the ability to measure and understand the ratios called sine, cosine and tangent. Using equations associated... More »

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One application of trigonometry in the real world is determining the distance and location of faraway objects. This is useful in navigation and in surveying. Historically, trigonometry was also applied to determine the p... More »

Students can visit Khan Academy to find online tutorials on various trigonometric topics, such as unit circles, graphing trigonometric functions and trigonometric identities. Online calculators, such as the trigonometric... More »

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The ancient Greeks were the first to develop the conceptual framework of trigonometry. The noted Greek astronomers Hipparchus, Menelaus and Ptolomy contributed in advancing the field. More »

A unit circle can help solve values for the tangent of angles 30 degrees, 45 degrees and 60 degrees. Tan (θ) = x/y, sin (θ) = y and cos (θ) = x. By substituting x and y, tan (θ) = sin (θ)/cos (θ). More »

www.reference.com Math Geometry Trigonometry

Tangent line approximation is used in calculus to approximate the values of a function based on its tangent. Tangent line approximation can be used because any curve examined closely at a particular point begins to bear ... More »

www.reference.com Math Geometry Trigonometry

Find the tangent by dividing the length of the opposite side of a right triangle by the length of its adjacent side. The result of this equation is the tangent, a single point on a circle through which the tangent line r... More »

www.reference.com Math Geometry Trigonometry
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