AP and TS EAMCET Engineering Model Paper 20

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Question : 60 of 160

Marks: +1, -0

The triad which cannot be direction cosines of any line is

2
3
,
2
3
,
1
3
2
9
,
2
9
,
1
9
1
√14
,
3
√14
,
2
√14
3
5
,0,
4
5

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