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November 25, 2014

November 25, 2014

Posted by **grace** on Friday, August 30, 2013 at 3:40am.

- geometry -
**Steve**, Friday, August 30, 2013 at 4:53amIf r1r2 means r1•r2, then that's just -2

If you mean r1×r2, that would be -66i-34j+32k

Again, the alleged choices don't mean much to me.

- vector and geometry -
**isaac**, Wednesday, November 5, 2014 at 5:27pmGiven that;r-1=6i-8j=2k, r2=4i=5j=7k, r3=2i=j=6k. Find r1,r2.

- geometry -
**isaac**, Wednesday, November 5, 2014 at 5:29pm-2

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