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Find the direction cosines of the x axis.​
  • a)
    1, 0, 0
  • b)
    0, 0, 0
  • c)
    0, 1, 0
  • d)
    0, 0, 1
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
Find the direction cosines of the x axis.​a)1, 0, 0b)0, 0, 0c)0,...
To find Direction Cosines of X-axis.
Take any two points on X-axis : A(a,0,0) & B(b,0,0)
DR of AB : (b-a,0,0)
DC of AB : ((b-a)/(((b-a)2 + 0 + 0)1/2), 0, 0)
: ((b-a)/(b-a) , 0 , 0)
: (1,0,0)
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Community Answer
Find the direction cosines of the x axis.​a)1, 0, 0b)0, 0, 0c)0,...
To find Direction Cosines of X-axis.
Take any two points on X-axis : A(a,0,0) & B(b,0,0)
DR of AB : (b-a,0,0)
DC of AB : ((b-a)/(((b-a)2 + 0 + 0)1/2), 0, 0)
: ((b-a)/(b-a) , 0 , 0)
: (1,0,0)
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Find the direction cosines of the x axis.​a)1, 0, 0b)0, 0, 0c)0, 1, 0d)0, 0, 1Correct answer is option 'A'. Can you explain this answer?
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