UPSC NDA 2 2016 Mathematics Solved Paper
Show Para
Consider the following for the next two (02) items that follow:
Let Q be the image of the pointP ( − 2 , 1 , − 5 ) 3 x − 2 y + 2 z + 1 = 0
Let Q be the image of the point
[NDA II 2016]
© examsiri.com
Question : 62 of 120
Marks:
+1,
-0
Consider the following:
1. The direction ratios of the line segment PQ are< 3 , − 2 , 2 >
2. The sum of the squares of direction cosines of the line segment PQ is unity.
Which of the above statements is/are correct ?
1. The direction ratios of the line segment PQ are
2. The sum of the squares of direction cosines of the line segment PQ is unity.
Which of the above statements is/are correct ?
[NDA II 2016]
Go to Question: