Question: Step 2 The given vector - 7 i + 8 j has magnitude | - 7 i + 8 j | = ? 2 Therefore,

Step 2
The given vector -7i+8j has magnitude
|-7i+8j|=?2
Therefore, a unit vector u that has the same direction as vector -7i+8jis
Step 2 The given vector - 7 i + 8 j has magnitude

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