Sine, Cosine and Tangent - Math is Fun
WEBSine, Cosine and Tangent (often shortened to sin, cos and tan) are each a ratio of sides of a right angled triangle: For a given angle θ each ratio stays the same. no matter how big or small the triangle is. To calculate them: Divide the length of one side by another side. Example: What is the sine of 35°?
Sine and cosine - Wikipedia
WEBThe sine and cosine of an acute angle are defined in the context of a right triangle: for the specified angle, its sine is the ratio of the length of the side that is opposite that angle to the length of the longest side of the triangle (the hypotenuse), and the cosine is the ratio of the length of the adjacent leg to that of the hypotenuse.
Sine and Cosine - Explained Visually
WEBSine and cosine — a.k.a., sin (θ) and cos (θ) — are functions revealing the shape of a right triangle. Looking out from a vertex with angle θ, sin (θ) is the ratio of the opposite side to the hypotenuse, while cos (θ) is the ratio of the adjacent side to the hypotenuse.
05 - Sine and Cosine - Definition & Meaning - Part 1 - What is Sin…
WEBIn this lesson, we will learn fundamentally what the sine function and cosine function represent.
Introduction to Trigonometry - Math is Fun
WEBSine, Cosine and Tangent. 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.)
Sine, Cosine, Tangent, explained and with Examples and practice ...
WEBThis 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.
Trigonometric functions - Wikipedia
WEBThe sine and the cosine functions, for example, are used to describe simple harmonic motion, which models many natural phenomena, such as the movement of a mass attached to a spring and, for small angles, the pendular motion of …
1.2: The Cosine and Sine Functions - Mathematics LibreTexts
WEBThis arc begins at the point (1, 0) and ends at its terminal point P(t). We then define the cosine and sine of the arc t as the x and y coordinates of the point P, so that P(t) = (cos(t), sin(t)) (we abbreviate the cosine as cos and the sine as sin).
Trigonometric ratios review (article) | Khan Academy
WEBReview all six trigonometric ratios: sine, cosine, tangent, cotangent, secant, & cosecant.
Unit 14: Trigonometric functions - Khan Academy
WEBBasic trigonometric identities. Learn. Sine & cosine identities: symmetry. Tangent identities: symmetry. Sine & cosine identities: periodicity. Tangent identities: periodicity. Trigonometric values of special angles.