Do 1/3 x 1/2 to get 1/6, or you could think, 1/3 divided by 2, which would equal 1/3 x 1/2
ED = 68
Angle GKH = 31
ABD = 224
Angle AKB = 112
-π/2 < arctan(x) < π/2
So cos(π/2) < cos(arctan(x)) < cos(0)
0 < cos(arctan(x)) < 1
3x>=8
It should be
Three is less than or equal to eight
