Question 919718
pi is 180 degrees, so -pi/4 = -180/4 = -45 degrees = 360 - 45 = 315 degrees
cos(315) = 0.707106781
csc(315) = 1/sin(315) = −1.414213562
cot(315) = cos(315) / sin(315) = 0.707106781 / −0.707106781 = -1