The volume of the tetrahedron whose vertices are \( \mathrm{P} \) t...

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The volume of the tetrahedron whose vertices are
\( \mathrm{P} \) the points with position vectors
\( \mathrm{W} \) \( \hat{i}-6 \hat{j}+10 \hat{k},-\hat{i}-3 \hat{j}+7 \hat{k} \)
\( 5 \hat{i}-\hat{j}+\lambda \hat{k} \) and \( 7 \hat{i}-4 \hat{j}+7 \hat{k} \) is 11 cubic units if the value of \( \lambda \) is:
(1) \( -1,7 \)
(2) 1, 7
(3) -7
(4) -1
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