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anonymous

  • 5 years ago

a = i +2j -3k and b = -2i -j +5k are two vectors, how to find the angle between the vectors and how to find a vector that is perpendicular to vector a

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  1. anonymous
    • 5 years ago
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    Try using inner product: Angle = arccos[(a dot b)/(|a||b|)]

  2. anonymous
    • 5 years ago
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    Dot <12,-3>.<-2,-1,5>

  3. anonymous
    • 5 years ago
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    how do I get the vector perpendicular - second part of the question

  4. anonymous
    • 5 years ago
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    Cross the 2 vectors, result is vector perpendicular

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