Solving Basic Trig Equations
Isolate the trigonometric expression
Figure out the possible quadrants based on the sign of the number (i.e. only pay attention to positive vs negative)
Figure out the reference angle based on the magnitude of the number (i.e. ignore negative)
Combine info to determine 𝜃
Example: Find the two values of 𝜽 in the interval 𝟎≤𝜽<𝟐𝝅 that solve the equation.
sin𝜃=−12