Question: A positron undergoes a displacement r = 2.0i 3.0j + 6.0k, ending with the position vector r = 3.0j - 4.0k, in meters. What

A positron undergoes a displacement ∆r = 2.0i – 3.0j + 6.0k, ending with the position vector r = 3.0j - 4.0k, in meters. What was the positron's initial position vector?

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