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# Trig

TermDefinition
Radians A unit of measure for angles
Degrees Another way to measure angles symbolizes by a small, raised circle
Quadrant angle The terminal side lays on the x-axis or y-axis
Coterminal angle Two angles with the same initial and terminal sides
Unit circle A circle with the radius of one
reference angle Always have a measure between 0 and (pie divided by two)
Sine The trigonometric function that is equal to the ratio of the side opposite a given angle (in a right triangle) to the hypotenuse.
Cosine The trigonometric function that is equal to the ratio of the side adjacent to an acute angle (in a right-angled triangle) to the hypotenuse.
Cosecant The ratio of the hypotenuse (in a right-angled triangle) to the side opposite an acute angle; the reciprocal of sine.
Tangent A straight line or plane that touches a curve or curved surface at a point, but if extended does not cross it at that point.
Secant A straight line that cuts a curve in two or more parts; the reciprocal of cosine
Cotangent The length of the adjacent side divided by the length of the opposite side
Inverse takes the ratio “opposite/hypotenuse” and gives us the angle
Arcsin
Created by: keysearcy