Analytical Geometry of Two and Three DimensionsEquation of a Line in Various Forms (NDA (National Defence Academy) Mathematics): Questions 1  3 of 3
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Question number: 1
» Analytical Geometry of Two and Three Dimensions » Equation of a Line in Various Forms
Appeared in Year: 2012
Question
What is the sum of the squares of direction cosines of the line joining the points ?
Choices
Choice (4)  Response  

a.  1 

b. 


c.  3 

d.  0 

Question number: 2
» Analytical Geometry of Two and Three Dimensions » Equation of a Line in Various Forms
Question
What is the sum of the squares of direction cosines of the line joining the points ?
Choices
Choice (4)  Response  

a. 


b.  1 

c.  0 

d. 


Question number: 3
» Analytical Geometry of Two and Three Dimensions » Equation of a Line in Various Forms
Question
What is the sum of the squares of direction cosines of the line joining the points ?
Choices
Choice (4)  Response  

a. 


b.  1 

c.  0 

d.  2 
