The Cartesian equations of a line are 
Its vector equation is
Dixed point (1,-2,5) and the parallel vector is 
Equation (î -2ĵ +5k̂ )+α (
)
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The Cartesian equations of a line are Its vector equation is
Dixed point (1,-2,5) and the parallel vector is
Equation (î -2ĵ +5k̂ )+α ()