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Question 1. For which real x,   y,   z   is true the equality u-v=w,   if u=(1,0,x),   v=(x,-1,y),   w=(3,z,-2) ?
a) x=2,y=0,z=1  
b) x=-2,y,z=-1  
c) x=-2,y=0,z=1  
d) x=2,y,z=1  
e) x=-2,y=0,z=-1  
Question 2. Determine the equation of the straight line which passes through the point [2,1]   and the intersection of lines x=s,   y=5+2s,   s   and x=1+3t,   y=-t,   t.  
a) 3x+y-7=0  
b) y-1=0  
c) -x-2y+4=0  
d) does not exist.
e) 3x-y+5=0  
Question 3. The distance of the point  A=[3,1,-2]   from the line X=[0,2,2]+t(-2,3,2),   t  is equal to
a) 7  
b) 5  
c) 9  
d) 3  
e) 3.5  

Evaluate