Question

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|

Answer 1

|v1| = distance of the vector v1. Do you know the formula?

Answer 2

No, not really.

Answer 3

if v = (a,b)

|v| = sqrt(a^2 + b^2)

Answer 4

Okay, but what about |v2|
|V1|= sqrt(3^2+5^2)=5.83
|v2|=sqrt(-4^2+7^2)=8.06
Am I right?

Answer 5

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.

Answer 6

I get the same answer but I'm not sure If the methodology is the same.

Answer 7

Okay thanks