UPSC NDA I 2023 Mathematics Solved Paper
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Consider the following for the next two (02) items that follow :
LetA ( 1 , − 1 , 2 ) B ( 2 , 1 , − 1 ) x 2 + y 2 + z 2 + 2 u x + 2 v y + 2 w z − 1 = 0
Let
[NDA I 2023]
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Question : 61 of 120
Marks:
+1,
-0
What is u + v + w
[NDA I 2023]
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