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Mathematics 12 Online
OpenStudy (anonymous):

For what values of k if any are vector u and v orthogonal? u = (2,k,k) and v=(1,7,k) and when u= (k,k,1) and v=(k,5,6)?

OpenStudy (anonymous):

I need to use the quadratic formula to get an answer but it becomes a decimal answer I don't know if thats allowed?

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