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Prove that the four points having positi...

Prove that the four points having position vectors are non-coplanar: ` hat i+2 hat j+3 hat k ,2\ hat i+ hat j+3 hat k\ a n d\ hat i+ hat j+ hat k`

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`A(2 hat{i}+hat{j}-hat{k})`

`B(3 hat{i}-2 hat{j}+hat{k} hat{k}) `

`C(hat{i}+4 hat{j}-3 hat{k})`

`overrightarrow{B A}= vec{A}-vec{B}`

`=(2-3) hat{i}+(bf{q})+2) hat{j}+(-1-1) hat{k}`

`=-hat{i}+3 hat{j}-2 hat{k}`

`overrightarrow{b c}=vec{c}-vec{b}`

`=(-2) hat{i}+6 hat{j}-4 hat{k}`

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