15π/4 = 675°
which is co-terminal with 675-360 or 315°
or 7π/4
notice that 15π/4 - 2π = 7π/4
Find the co terminal angle for 15pi/4
2 answers
Nonnegative coterminal is (pi)/4
Negative coterminal is -(pi)/4
Negative coterminal is -(pi)/4