Trigonometry Review

Angle Measurement radians, so radians To convert from degrees to radians, multiply by To convert from radians to degrees, multiply by

Special Angles r=1

Special Angles - Unit Circle Coordinates π/3 5π/6 π/4 π/2 2π/3 3π/4 π/6 π 3π/2

Trig Functions - Definitions (x,y) r 

Trig Functions - Definitions  opp adj hyp

Trig Functions - Definitions

Trig Functions Signs by quadrants sin, csc positive all functions positive tan, cot positive cos, sec positive

Trig Identities Reciprocal Quotient

Trig Identities Pythagorean

Trig Identities Double Angle

Inverse Trig Functions is equivalent to is equivalent to

Solving Trig Equations Use algebra, then inverse trig functions or knowledge of special angles to solve. example: if