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\nReview of trigonometry Points on the Unit Circle\n

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\n\nPublisher:\n\nBrian McLogan\n\n\n
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\n👉 Learn about the trigonometric functions using the unit circle. The trigonometric function of an angle is the value of the trigonometric functions of sine, cosine, tangent, cosecant, secant and cotangent of that angle. To use the unit...\n👉 Learn about the trigonometric functions using the unit circle. The trigonometric function of an angle is the value of the trigonometric functions of sine, cosine, tangent, cosecant, secant and cotangent of that angle. To use the unit circle in evaluating the trigonometric functions of an angle, we first identify the coordinate points of the terminal side of the sector formed by the angle on the unit circle. Next, we draw a triangle with the terminal side of the reference angle as the hypothenuse, the positive or the negative x-axis (as the case may be) as the side adjacent to the reference angle and a line parallel to the positive or the negative y-axis (as the case may be) as the side opposite the reference angle. The x-coordinate of the coordinates of the terminal point formed by the angle on the unit circle represents the adjacent side of the triangle while the y-coordinate represent the opposite side of the triangle. We can then use the SOHCAHTOA principle to evaluate the trigonometric functions of the reference angle.\n
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Resource Details

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Educator Rating
Not yet Rated
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Media Length
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10:19
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Grade
12th - Higher Ed
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Subjects
Math
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Media Type
Instructional Videos
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Source:
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\nBrian McLogan\n\n
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Date
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2012
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Language
English
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Audiences
For Teacher Use
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Fine Print: Educational Use
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Concepts

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unit circle, angles, tangent, opposite, triangles, distance, cosine, degrees, radians, terminal side
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review, of, how to, find, points, determine, construct, free math videos, brian mclogan, initial side, counterclockwise, clockwise direction, measurement of angles, measurement of angles trigonometry, graphing angles, angles in terms of pi, in terms of pi, unit circle triangle method, cartesian coordinate system, coordinate point, special triangles, special triangles trigonometry, square root, math help, real quick, started talking, opposite side, circle, started, special, correct, remember, coordinate, point, reciprocal, angle, talked, thing, axis, gonna, call, called, radian, noticed
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Best For: Explaining a topic
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