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Questions  

The equation of the line passing through the point  (0,0,0) and parallel to x axis is 

a
x1=y1=z0
b
x−a0=y−b1=z−c1
c
x1=y0=z0
d
x0=y0=z1

detailed solution

Correct option is C

The direction cosines of x−axis   are ⟨1,0,0⟩Therefore, the equation of the line passing through the point (0,0,0) and parallel to the line whose direction ratio are ⟨1,0,0⟩  is   x1=y0=z0

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