Hello everyone, this should be a simple problem..its for matrices and I already delt with this in calc III and physics but it says:(adsbygoogle = window.adsbygoogle || []).push({});

find a unit vector with positive first coordinate orthogonal to both a and b.

a = <1,2,1>

b = < 1,8,1>

so i took the cross product and got:

<-6,0,6> it says, my j component is right but the i and k are wrong. Any ideas why?

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# Why isn't the cross product working?

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