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There are two vectors vecA=3hati+hatjand...

There are two vectors `vecA=3hati+hatjandvecB=hatj+2hatk`. For these two vectors,
Find a unit vector which is perpendicular to both `vecA&vecB`.

Text Solution

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Component of `vecA` along `vecB=((vecA.vecB)/(B))hatB=((vecA.vecB)/(B))(vecB)/(B)=[((3hati+hatj).(hatj+2hatk))/(sqrt(5))]((hati+2hatk))/(sqrt(5))=(1)/(5)(hatj+2hatk)`
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