Find a vector parallel to the line of intersection of the two planes x+2y-3z=7 and 3x-y+z=0.

Question

anonymous · Answer

just a quick question are you doing  matrices right now or it more of trig?

anonymous · Answer

it's for calc 3 we haven't done anything with matrices

anonymous · Answer

i tried to do an odd problem that was similar however i am just not getting it

anonymous · Answer

oh snap i was thinking about algebra lol kk

turingtest · Answer

I haven't seen this problem before, but I'm thinking that crossing the normal vectors of the planes should give a vector parallel to the intersection line
does that make sense to you?

turingtest · Answer

$$\vec n_1\times\vec n_2=\left|\begin{matrix}\hat i&\hat j&\hat k\1&2&-3\3&-1&1\end{matrix}\right|$$

turingtest · Answer

|dw:1335495281221:dw|

turingtest · Answer

|dw:1335495404699:dw|that's how I see it at least...