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OpenStudy (anonymous):
If A & B be vectors, what can we infer about the angle between them from this equality: |A-B|=|A+B|
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OpenStudy (anonymous):
They are perpendicular to each other.
OpenStudy (anonymous):
how can I show that?
OpenStudy (anonymous):
|dw:1349443968041:dw|
OpenStudy (anonymous):
|dw:1349444104963:dw|
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