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TS EAMCET Engineering 14 May 2023 Shift 2 Solved Paper

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Question : 60

Total: 160

If θ is the acute angle between the two lines whose direction cosines are connected by the relations l+m+n=0 and 2lm+2nl−mn=0, then cos‌θ=

‌
1
2
‌
√3
2
‌
5
6
‌
3
5

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