At what which of the following sets of values is the tangent function undefined?(1 point) Responses at 45 and 135 degrees at 45 and 135 degrees at 60 and 120 degrees at 60 and 120 degrees at 90 and 180 degrees at 90 and 180 degrees at 90 and 270 degrees at 90 and 270 degrees
The tangent function is undefined when the angle is a multiple of 90 degrees plus (or minus) 90 degrees. Therefore, the correct answer is "at 90 and 270 degrees."
