- #1

jaejoon89

- 195

- 0

x/3 = y/2 = z/2

x/5 = y/3 = (z-4)/2

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cross product:

<3,2,2> x <5,3,2> = <-2,4,-1>

then the line is

(x-a)/2 = (b-y)/4 = (z-c)/1

but the answer is supposed to be

(1/2)x - (52/7) = (-1/4)y + (52/21) = z - (208/21)

How on Earth do I get that?