For any vector\[\vec{\alpha }\], what is\[\left( \overset{\to }{\mathop{\alpha }}\,.\widehat{i} \right)\widehat{i}+\left( \overset{\to }{\mathop{\alpha }}\,.\widehat{j} \right)\widehat{j}+\left( \overset{\to }{\mathop{a}}\,.\widehat{k} \right)\widehat{k}\] equal to?

\[3\overset{\to }{\mathop{\alpha }}\,\]

\[\overset{\to }{\mathop{\alpha }}\,\]

\[-\overset{\to }{\mathop{\alpha }}\,\]

\[\overset{\to }{\mathop{0}}\,\]

For any vector\[\vec{\alpha }\], what is\[\left( \overset{\to }{\matho

1.	For any vector\[\vec{\alpha }\], what is\[\left( \overset{\to }{\mathop{\alpha }}\,.\widehat{i} \right)\widehat{i}+\left( \overset{\to }{\mathop{\alpha }}\,.\widehat{j} \right)\widehat{j}+\left( \overset{\to }{\mathop{a}}\,.\widehat{k} \right)\widehat{k}\] equal to?
A.	\[\overset{\to }{\mathop{\alpha }}\,\]
B.	\[3\overset{\to }{\mathop{\alpha }}\,\]
C.	\[-\overset{\to }{\mathop{\alpha }}\,\]
D.	\[\overset{\to }{\mathop{0}}\,\]
Answer» B. \[3\overset{\to }{\mathop{\alpha }}\,\]

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For any vector\[\vec{\alpha }\], what is\[\left( \overset{\to }{\mathop{\alpha }}\,.\widehat{i} \right)\widehat{i}+\left( \overset{\to }{\mathop{\alpha }}\,.\widehat{j} \right)\widehat{j}+\left( \overset{\to }{\mathop{a}}\,.\widehat{k} \right)\widehat{k}\] equal to?

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