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Find a Vector parallel to the line of intersection 
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#1
Sep2111, 09:06 PM

P: 22

1. The problem statement, all variables and given/known data
Find a vector parallel to the line of intersection of the planes given by the equations 2x3y+5z=2 and 4x+y3z=7. 2. Relevant equations How do I go about this? I know we have two vectors <2,3,5> and <4,1,3> but where do I go from here? 3. The attempt at a solution I don't know whether I dot this, cross product this. I'm lost as where to go from here. 


#2
Sep2111, 10:24 PM

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P: 3,307

note that the line is parallel to both planes. so it is perpendicular to both planes' normals. If you can find the normal of each planes (which you have), how can you use those 2 vectors to find a vector perpendicular to both?



#4
Sep2111, 10:32 PM

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P: 3,307

Find a Vector parallel to the line of intersection
cheers, updated it



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