Find 2 vectors u and v such that they are perpendicular one of the vector is twice the magnitude of the other. And the sum vector of u and v is [6,8](adsbygoogle = window.adsbygoogle || []).push({});

I did:

Let u=[a,b]

Let v=[c,d]

Let |u|=2|v

u.v=ac+bd=0

|u+v|=|u|^2 + |v|^2

But |u|=2|v|

|u+v|=5|v|^2

5|v|^2=100

|v|^2=20

Im stuck after this

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# Homework Help: Linear algebra

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