Each of two vectors, and , lies along a coordinate axis in the xy plane. Each vector has its tail at the origin, and the dot pro duct of the two vectors is . Which possibility is correct?
1 answer:
Answer:
A lies along the positive x-axis and B lies along negative x - axis
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Step-by-step explanation:
They tell us that we have two vectors, A and B. And they give us a series of conditions for this, now, what would be the correct possibility.
A lies along the positive x-axis and B lies along negative x - axis
.
This is because when both vectors will be in x axis but opposite to each other, then the angle between them will be 180 ° and cos180 ° is -1.
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