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Find a unit vector in the opposite direction of u¯. Where u¯=8i^+3j^-k^ - Mathematics and Statistics

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Question

Find a unit vector in the opposite direction of `baru`. Where `baru = 8hati + 3hatj- hatk`

Sum
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Solution

Required vector = `(-baru)/|baru|`

= `-(8hati + 3hatj - k)/sqrt(64 + 9 + 1)`

= `(-8hati - 3hatj + k)/sqrt(74)`

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Algebra of Vectors
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Chapter 1.5: Vectors and Three Dimensional Geometry - Very Short Answers

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SCERT Maharashtra Mathematics and Statistics (Arts and Science) [English] 12 Standard HSC
Chapter 1.5 Vectors and Three Dimensional Geometry
Very Short Answers | Q 4
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