0 of 5 blanks filled
Key Terms
Radian
A unit of angle measure where one radian is the angle formed when the ______ of a circle is wrapped around its circumference.
Coterminal Angles
Angles that share the same ______ side, differing by multiples of 2π radians or 360 degrees.
Unit Circle
A circle centered at the ______ with a radius of one unit, used to define trigonometric functions for any angle.
Inverse Trigonometric Functions
Functions that take a ______ as input and output an angle.
Principal Value
The unique output angle of an inverse trigonometric function, restricted to a specific ______ to ensure it's a function.
1 / 5