a)Determine whether the lines (x-1)/4=(y+1)/2=(z-3)/-1 and

(x-1)/1=(y+1)/2=(z-3)/8 are orthogonal , parallel or neither.

b)Determine whether the following lines (x-3)/3 = (y+1)/-2 = (z-3)/5 contains the point (6,-3,8)

c)Find equation of the line containing the given point (5,3,4) and parallel to the vector

-> -> ->

2 i + 5 j - 8 K

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