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July 22, 2014

Homework Help: physics

Posted by tae on Thursday, April 25, 2013 at 11:54am.

If d1 = 7 ihat - 2 jhat + 4 khat and d2 = -5 ihat + 2 jhat - khat, then what is (d1 + d2)(d1 multiplied by 6 d2)?

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