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1)

The equation of liner equality inclined to coordinate axes and passing through (-3,2,-5) is 


A) x+31=y21=z+51

B) x+31=y21=z+51

C) x+31=y21=z+51

D) x+31=2y1=z+51

Answer:

Option B

Explanation:

Let (x1,y1,z1) =(-3,2,-5)

It is also given that, the line is equally inclined to coordinate axes,

     l=-1,m=1 and n=-1

 We know that , the equation of line passing through (x1,y1,z1) and having cosines l,m, n is 

\frac{x-x_{1}}{l}=\frac{y-y_{1}}{m}=\frac{z-z_{1}}{n}

\therefore      \frac{x+3}{-1},\frac{y-2}{1},\frac{z+5}{-1}