anonymous
  • anonymous
I need help, but please try not to give me the answer: it says let v1=(3,5) and v2=(-4,7) compute |v1| and |v2|
Mathematics
katieb
  • katieb
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slaaibak
  • slaaibak
|v1| = distance of the vector v1. Do you know the formula?
anonymous
  • anonymous
No, not really.
slaaibak
  • slaaibak
if v = (a,b) |v| = sqrt(a^2 + b^2)

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anonymous
  • anonymous
Okay, but what about |v2| |V1|= sqrt(3^2+5^2)=5.83 |v2|=sqrt(-4^2+7^2)=8.06 Am I right?
roadjester
  • roadjester
It's basically the pythagorean theorem. This is leaning a bit more towards physics (for me) but I think the notation is similar in a sense.
roadjester
  • roadjester
I get the same answer but I'm not sure If the methodology is the same.
anonymous
  • anonymous
Okay thanks

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