Find the reference angle 𝜃 ' for the special angle 𝜃. (Round your answer to four decimal places.)

Question

𝜃=-7pi/4

𝜃 ' =___??

much appreciated:)

Answer 1

Look at the Unit Circle. Positive 7π/4 is 4th quadrant, negative 7π/4 is therefore the same as positive π/4, so its reference angle is just π/4.