Which of the following is not true?

A)Vector addition is commutative.
B)Scalar addition is commutative.
C)Scalar multiplication is commutative.
D)The sum of a scalar and a vector is a scalar.
E)The sum of two vectors is a vector.

Question

Which of the following is not true?
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A)Vector addition is commutative.
B)Scalar addition is commutative.
C)Scalar multiplication is commutative.
D)The sum of a scalar and a vector is a scalar.
E)The sum of two vectors is a vector.

Quizplus · Accepted Answer

The sum of a scalar and a vector is undefined in the context of vector algebra; scalars and vectors are different types of quantities and cannot be directly added.

Which of the Following Is Not True