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State whether the expression is meaningful. If not, explain why? If so, state whether it is a vector or a scalar: abca¯.(b¯+c¯) - Mathematics and Statistics

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Question

State whether the expression is meaningful. If not, explain why? If so, state whether it is a vector or a scalar:

`bar"a".(bar"b" + bar"c")`

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Solution

This is the scalar product of two vectors. Therefore, this expression is meaningful and it is a scalar.

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Chapter 5: Vectors - Miscellaneous exercise 5 [Page 192]

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