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A,B,C,D are four pints such that vec(AB)...

A,B,C,D are four pints such that `vec(AB)=m(2veci6vecj+2veck), vec(BC)=veci+2vecj and vec(CD)=n(-6veci+15vecj-3veck)` . Find the conditions on the scalar m and n so that CD interesects aB at some point H.Also find the area of `/_\BCH`

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