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## Homework Statement

If A = i + j + k and B = -i + -j + -k , then (A-B) will make angle with A? What is the concept behind it, could you please explain with a diagram? (this is the part from scalar and vector)

## Homework Equations

## The Attempt at a Solution

If we substruct (A-B) we get '0' because 1-1 = 0 Am I right Please check.