Question

Q4: Can a scalar product of two vectors be negativ?
Provide a proof and give an example.​

Answer 1

Answer:

Yes. The scalar product can be thought of as a projection of one vector onto another. If they are facing in different directions, that is, if the angle between them is more than 90 degrees, this projection will be negative

Examples:

Here is your answer, Yes, it will be negative if the angle between the two vectors lies between 90° to 270

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