6 résultats pour "trigonometry"
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Trigonometry
I
INTRODUCTION
Trigonometry, branch of mathematics that deals with the relationships between the sides and angles of triangles and with the properties and applications of the
trigonometric functions of angles.
If point P, in the definition of the general trigonometric function, is on the y-axis, x is 0; therefore, because division by zero is inadmissible in mathematics, the tangent and secant of such angles as 90°, 270°, and -270° do not exist. If P is on the x-axis, y is 0; in this case, the cotangent and cosecant of such angles as 0°, 180°, and - 180° do not exist. All angles have sines and cosines, because r is never equal to 0. Since r is greater than or equal to x or y, the values of si...
- Secant (trigonometry) Secant (trigonometry), one of the fundamental ratios of trigonometry.
- Tangent (trigonometry).
- Sine. Sine, one of the fundamental ratios of trigonometry. A ratio
- Cosecant Cosecant, one of the six fundamental ratios of trigonometry.
- Degree I INTRODUCTION Degree, in trigonometry, arc equaling 1/360 of the circumference of a circle, or the central angle subtended by such an arc.