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anonymous

  • 4 years ago

Hey guys I just wanted to make sure I'm understanding my notes. This question seems too obvious. Consider the vector u = i − 2j + 2k. What is (a) the component form of −u, I'm right in thinking -u = (-i+2j-2k) ?

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  1. ash2326
    • 4 years ago
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    yeah

  2. anonymous
    • 4 years ago
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    Seems about right...

  3. anonymous
    • 4 years ago
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    Rad thanks guys, was just having pre test spaz out then.

  4. mathmate
    • 4 years ago
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    I usually write component form as <-1, 2, -2 >

  5. anonymous
    • 4 years ago
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    See I'm not sure, in my notes I have. 'A vector u, with component form α i + β j + γ k may also be written as the triple (α, β, γ).' So I assume they want the components listed out as above. I'll see if I can get it clarified before the test.

  6. mathmate
    • 4 years ago
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    Don't forget that they are angle brackets in most textbooks. It is also possible that there are variations. Check your class notes to see what your teacher prefers.

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