Trigonometry: Trigonometric Functions
In mathematics, the trigonometric functions are functions of an angle. They are important in the study of triangles and modeling periodic phenomena, among many other applications. Trigonometric functions are commonly defined as ratios of two sides of a right triangle containing the angle, and can equivalently be defined as the lengths of various line segments from a unit circle.
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Trigonometry: Trigonometric Functions Videos
Sine Cosine Tangent
Video Clip Length: 2 minutes 18 seconds
Video Clip Views: 7730
This clip gives the definitions of the trigonometric functions sine, cosine and tangent.
curves, plane figures, shapes, trigonometric functions, trigonometric identities
Ratio Identities
Video Clip Length: 2 minutes 20 seconds
Video Clip Views: 2077
ratio, trigonometric functions, trigonometric identities
Trigonometry: Trigonometric Functions Word Problems
An airplane is sighted at the same time
An airplane is sighted at the same time by two ground observers who are 4 miles apart and both directly west of the airplane. They report the angles of elevation as 11° and 22°...
A 25 m tower standing vertically
A 25 m tower standing vertically on a hillside casts a shadow down the hillside that is 27 m long. The angle at the tip of the shadow S, subtended by the tower is 26...
Trigonometry: Trigonometric Functions Practice Questions
How do you graph trig tangents?
What is the area of triangle ABC given that a = 4 , b = 7 , and B = 75°
sin(a+b)=
tan 59
a=8.5 c = 14.2
What is the value of arcsin (- √
2 / 2)?
a=17 b=39 and c=50 Find A
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