can line have 60 degree,45 degree, 30 degree as it's direction angles
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Given -
Angles are 60 degree , 45 degree , 30 degree
We know -
cos² A +cos²B+cos² C = 1
If A, B and C are direction angle of a line.
Here
cos² (60) +cos²(45)+cos² (30)
= 1/4 + 1/2 + 3/4 = 3/2
So these are not direction angles of a line.
Angles are 60 degree , 45 degree , 30 degree
We know -
cos² A +cos²B+cos² C = 1
If A, B and C are direction angle of a line.
Here
cos² (60) +cos²(45)+cos² (30)
= 1/4 + 1/2 + 3/4 = 3/2
So these are not direction angles of a line.
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