x = 74.05 degrees, approx
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x = 16.7+180*k deg where k is an integer.
If tan x = 0.3 then arctan x = 16.70° (2dp)
Yes because a whole turn equals 360 degrees and when we divide 360 by 3 we'll get 120 degrees there are 3 lines at the angle at a point
The tangent line to a straight line, such as y = 2x - 3, is the straight line, itself.
30 degrees or pi/6