Radian measure of angles

Sections

1. 13A Radian measure of angle size The definition of a radian, converting between degrees and radians, exact trig values of special angles in radians, and using the calculator in radian mode.
2. 13B Solving trigonometric equations Solving trig equations in radians over a given domain, including compound angles and equations that reduce to quadratics.
3. 13C Arcs and sectors of circles Arc length ℓ = rθ, sector area A = ½r²θ, major and minor arcs and sectors, and the area of a segment.
4. 13D Trigonometric graphs in radians The graphs of sin, cos and tan in radians, amplitude, period, and the odd and even symmetry of the trig functions.