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**Problem**: If A = i - j + k and B = -3i + 5k, what is A - B?

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###### Problem Details

If **A** = **i** - **j** + **k** and **B** = -3**i** + 5**k**, what is **A** - **B**?

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Unit Vectors concept. You can view video lessons to learn Unit Vectors Or if you need more Unit Vectors practice, you can also practice Unit Vectors practice problems .