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# FP3 vectors - shortest distance watch

1. Can someone explain how to do this.

I tried using the formula

a-c = 6i-7j

and bxd is the direction vectors multiplied but one of them doesn't have a direction?

Im confused ;(
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2. The direction of the first line is j since s is the scalar product. It would look like this: [3i +0j -k +s(0i +j +0k)]

I see you mistook the s for a 5 xD.
3. Like Pyslocke said, s is the parameter for the first vector equation. Here is what you do (I left out doing b x d because you should be able to do it.)

I was unable to put the LaTeX into the thread, for some reason the commands don't work here...?
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4. untitled-1.pdf (57.5 KB, 43 views)

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Updated: June 16, 2016
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