Posted by **Miyako** on Thursday, June 21, 2012 at 4:10pm.

Hello ^___^

Please help me! Thank you very very much!

Determine if the planes are parallel.

[x,y,z] = [1,2,2] + s[0,-1,0] + t[0,0,1]

[x,y,z] = [1,0,-3] + s[0,0,1] + t[-1,0,0]

thank you ^__^Y

- Grade 12 Calculus University -
**Reiny**, Thursday, June 21, 2012 at 5:22pm
Find a normal to the first plane, and a normal to the second plane.

If the two normals are scalar multiples of each other, then the planes are parallel.

or

try to find their intersection, if you can find a solution, then they are obviously not parallel

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