Find the dot product between the vectors u and v: u = 6i – j and v = 4i +2j .

Question

mathmale · Answer

I think you ought to look up the formula for dot product, just to be certain that you know it and how to apply it.

But from what I remember, you can find the dot product by 1) multiplying the two coefficients of 'i' together, 2) mult. the two coeff. of 'j' together, and then adding those two products together.  Please try it and share your work.

mathmale · Answer

Another name for "dot product" is "scalar product."  The dot product is always a scalar quantity (as opposed to the cross product, which is a vector quantity).

If looking up "dot product" doesn't satisfy your curiosity, try looking up "scalar product" instead.

mathmale · Answer

Perhaps you're new here.  Some people learn quickly that if they stay with their own post, the work often gets done faster than it they let their attention stray and don't respond.

onthecly2 · Answer

okay, i'm an idiot thanks for helping (long story short i literally dont have a teacher this year, im out of practice) xD

mathmale · Answer

Happy to meet you, happy to help.  Not an idiot.  ;)