If a, b, c be any three non-coplanar vectors, then \[[\mathbf{a}+\mathbf{b}\,\,\,\mathbf{b}+\mathbf{c}\,\,\,\mathbf{c}+\mathbf{a}]=\] [RPET 1988; MP PET 1990, 02; Kerala (Engg.) 2002]

\[{{[\,\mathbf{a}\,\mathbf{b}\,\mathbf{c}\,]}^{2}}\]

\[|\mathbf{a}\,\mathbf{b}\,\mathbf{c}|\]

2\[[\mathbf{a}\,\mathbf{b}\,\mathbf{c}]\]

\[{{[\,\mathbf{a}\,\mathbf{b}\,\mathbf{c}\,]}^{2}}\]

\[2\,{{[\,\mathbf{a}\,\mathbf{b}\,\mathbf{c}\,]}^{2}}\]

If a, b, c be any three non-coplanar vectors, then \[[\mathbf{a}+\math

1.	If a, b, c be any three non-coplanar vectors, then \[[\mathbf{a}+\mathbf{b}\,\,\,\mathbf{b}+\mathbf{c}\,\,\,\mathbf{c}+\mathbf{a}]=\] [RPET 1988; MP PET 1990, 02; Kerala (Engg.) 2002]
A.	\[\|\mathbf{a}\,\mathbf{b}\,\mathbf{c}\|\]
B.	2\[[\mathbf{a}\,\mathbf{b}\,\mathbf{c}]\]
C.	\[{{[\,\mathbf{a}\,\mathbf{b}\,\mathbf{c}\,]}^{2}}\]
D.	\[2\,{{[\,\mathbf{a}\,\mathbf{b}\,\mathbf{c}\,]}^{2}}\]
Answer» C. \[{{[\,\mathbf{a}\,\mathbf{b}\,\mathbf{c}\,]}^{2}}\]

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If a, b, c be any three non-coplanar vectors, then \[[\mathbf{a}+\mathbf{b}\,\,\,\mathbf{b}+\mathbf{c}\,\,\,\mathbf{c}+\mathbf{a}]=\] [RPET 1988; MP PET 1990, 02; Kerala (Engg.) 2002]

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