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Mathematics
Mathematics
Problem
- Find the direction cosines of line which is perpendicular to the lines with direction ratio
[
1
,
−
2
,
−
2
]
[1, -2, -2]
[
1
,
−
2
,
−
2
]
and
[
0
,
2
,
1
]
[0, 2, 1]
[
0
,
2
,
1
]
.
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