SOLUTION: What is a unit vector that's in the direction of v = 7i + 4j? Ty!

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Question 1075693: What is a unit vector that's in the direction of v = 7i + 4j? Ty!
Answer by ikleyn(52898) About Me  (Show Source):
You can put this solution on YOUR website!
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This unit vector is  u = %287i%29%2Fsqrt%287%5E2%2B4%5E2%29 + %284j%29%2Fsqrt%287%5E2%2B4%5E2%29 = %287%2Fsqrt%2865%29%29%2Ai + %284%2Fsqrt%2865%29%29%2Aj