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The unit vector along a given vector is written with which symbol?

AA bar
BA dot
CA star
DA hat
Answer & Solution
Correct answer: D. A hat
1. Notation distinguishes a unit vector at a glance. 2. It sits above the letter. 3. The unit vector is denoted with a hat. 4. So the answer is a hat. _Source: syllabus Mathematics, Ch 10 'Vector Algebra'_
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