A product of two (or more) factor can be zero if and only if at least one of the factors is zero.
In other words, you cannot multiply two non-zero real numbers, and have zero as a result.
So, if we want the product of these two factors to be zero, at least one of them has to be zero.
The first factor is zero if
The second factor is zero if
Answer:
False
Step-by-step explanation:
the <u>dot product</u> between two vectors A and B is:
A·B=AB
where is the angle between the vectors, if they are parallel, this angle is zero. so
and so the dot product is:
A·B =AB
and since
the dot product is equal to
A·B=AB
The dot product of parallel vectors is NOT zero