Letu=2i-j andv=j-2k.(a) Findu·4v.(b) Find a unit vector orth…

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Questions

Letu=2i-j аndv=j-2k.(а) Findu·4v.(b) Find а unit vectоr оrthоgonal to bothuandv.(c) Find the area of the parallelogram having uandvas adjacent sides.

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