뒤로Trigonometric Functions on Right Triangles definitions
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1/16뒤로Skip to main content뒤로Right Triangle
A geometric figure with one 90-degree angle, used as the basis for defining trigonometric ratios. Hypotenuse
The longest side in a right triangle, always opposite the right angle and used in trigonometric ratios. Opposite Side
The side across from a given angle in a right triangle, crucial for calculating certain trigonometric functions. Adjacent Side
The side next to a given angle in a right triangle, but not the hypotenuse, used in trigonometric ratios. Sine
A trigonometric function representing the ratio of the opposite side to the hypotenuse for a given angle. Cosine
A trigonometric function representing the ratio of the adjacent side to the hypotenuse for a given angle. Tangent
A trigonometric function representing the ratio of the opposite side to the adjacent side for a given angle. SOHCAHTOA
A mnemonic device summarizing how sine, cosine, and tangent relate to the sides of a right triangle. Cosecant
A reciprocal trigonometric function, defined as the ratio of the hypotenuse to the opposite side. Secant
A reciprocal trigonometric function, defined as the ratio of the hypotenuse to the adjacent side. Cotangent
A reciprocal trigonometric function, defined as the ratio of the adjacent side to the opposite side. Reciprocal Identity
A relationship where a trigonometric function is expressed as the flipped version of another function's ratio. Inverse Trigonometric Function
An operation that retrieves an angle from a known trigonometric value, undoing the original function. Arc Function
An alternate name for inverse trigonometric functions, commonly used to find angles from ratios. Degree Mode
A calculator setting used when angles are measured in degrees, essential for correct trigonometric calculations. Radian Mode
A calculator setting used when angles are measured in radians, necessary for certain trigonometric evaluations.
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