1.(Mathematics)geometrya three-sided polygon that can be classified by angle, as in an acute triangle, or by side, as in an equilateral triangle. Sum of interior angles: 180°; area: base × height 2.any object shaped like a triangle ...
Get the complete introduction to the cosine function here at BYJU'S. Learn the definition, formula, table, inverse cosine function with other useful trigonometric identities with examples.
Consider a circle centered at the origin with radius one. The segment from the origin to a point P on the unit circle forms an angle x with the positive x-axis. The abscissa of P is the cosine of x. Cosine Definition In terms of a right triangle, thecosineof an acute angle is a ...
Consider a circle centered at the origin with radius one. The segment from the origin to a point P on the unit circle forms an angle x with the positive x-axis. The abscissa of P is the cosine of x. Cosine Definition In terms of a right triangle, thecosineof an acute angle is a ...
An alternative definition to the definition of a tangent is the ratio between the sine and the cosine of an angle, where the sine is, by definition, the ratio between the opposite angle and the hypothenuse, and the cosine, the ratio between the adjacent side and the hypothenuse. The fol...
The law of cosines is used to find missing information of a triangle. This missing value can be an unknown side or angle. What are cosines used for? Consider a right triangle. The cosine of an acute angle is the ratio between the adjacent side and the hypothenuse. ...
Trigonometry, the branch of mathematics concerned with specific functions of angles. There are six functions commonly used in trigonometry: sine (sin), cosine (cos), tangent (tan), cotangent (cot), secant (sec), and cosecant (csc). Learn more about trigo
2. (Mathematics) (of an angle) a trigonometric function that in a right-angled triangle is the ratio of the length of the opposite side to that of the adjacent side; the ratio of sine to cosine. Abbreviation: tan 3. (Surveying) the straight part on a survey line between curves 4. ...
circular functions can be simply defined as the functions of an angle of a triangle. it means that the relationship between the angles and sides of a triangle are given by these trig functions. the basic trigonometric functions are sine, cosine, tangent, cotangent, secant and cosecant. ...
The tan in trig definition for the angle ∠BAC is analogous: tanA^=BC―AB―. An alternative definition to the definition of a tangent is the ratio between the sine and the cosine of an angle, where the sine is, by definition, the ratio between the opposite angle and the hypothenus...