Question
The direction cosines of a line satisfy the relations The value of for which the two lines are perpendicular to each other, is a. b. c. d. none of these
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Question 2
Let L be the line of intersection of the planes and . If L makes an angles with the positive x-axis, then cos equalsQuestion Text | The direction cosines of a line satisfy the relations
The value of
for which the two lines are perpendicular to each other, is
a.
b.
c.
d. none of these |