UPSC NDA I 2014 Mathematics Paper
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For the next two (02) items that follow:
Let|
| = 7 , |
| = 11 , |
+
| = 10 √ 3
Let
[NDA I 2014]
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Question : 74 of 120
Marks:
+1,
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What is the angle between (
+
) (
−
)
[NDA I 2014]
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