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

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")

#### Solution

This is meaningless because bar"a" is a vector, bar"b" + bar"c" is a scalar and the scalar product of vector and scalar is not defined.

Concept: Vectors and Their Types
Is there an error in this question or solution?