Answer:
305.54degrees
Step-by-step explanation:
WE are to find the principal value of tan^-1(-1.4). Principal value means the highest value
theta = tan ^-1(-1.4)
theta = -54.46
Since theta is negative in the fourth quadrant;
theta = 360 - 54.46
theta = 305.54degrees
Hence the principal value is 305.54degrees
