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Learn how to use sine, cosine and tangent functions to find angles and sides of right triangles. See definitions, formulas, examples, graphs and exercises.
Learn how to use the tangent function to find the angle of a right triangle when you know the opposite and adjacent sides. See examples, slides, interactive widget and worksheet on this KS3 trigonometry topic.
Learn how to use tangent, one of the six fundamental trigonometric functions, to find the ratio of opposite and adjacent sides of a right triangle or the angle of a line segment on a unit circle. See tangent values for common angles, how to use a calculator, and how to apply tangent to real world problems.
Because of unit circle symmetry over the y-axis, the period is pi/2. This video shows how to graph the Tangent function on the coordinate plane using the unit circle, how to determine the domain and range of the tangent function. Show Step-by-step Solutions.
This page explains the sine, cosine, tangent ratio, gives on an overview of their range of values and provides practice problems on identifying the sides that are opposite and adjacent to a given angle. The Sine, Cosine and Tangent functions express the ratios of sides of a right triangle.
Tangent. The Tangent of angle θ is: tan(θ) = Opposite / Adjacent. So Inverse Tangent is : tan-1 (Opposite / Adjacent) = θ
The main functions in trigonometry are Sine, Cosine and Tangent. They are simply one side of a right-angled triangle divided by another. For any angle " θ ": (Sine, Cosine and Tangent are often abbreviated to sin, cos and tan.)
