Q. 16
The straight line 
is
A. parallel to the x-axis
B. parallel to the y-axis
C. parallel to the z-axis
D. perpendicular to the z-axis
Answer :
It is perpendicular to z-axis because cos90° is 0 which implies that it makes 90° with z-axis
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RS Aggarwal - Mathematics
Mark against the correct answer in each of the following:
The angle between the line 
and the plane 
is
RS Aggarwal - Mathematics
