9514 1404 393
Answer:
3π/4
Explanation:
A multiple of 2π can be added or subtracted from the given angle to make a coterminal angle. Here, we need to subtract 4π = 16π/4 to get the angle in the desired range.
19π/4 -16π/4 = 3π/4 . . . . angle coterminal with the given angle