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    • Thread Starter

    I'm having some trouble trying to work out the solutions for this problem.
    Attachment 703030
    The answer in the book says that for Mo it is -90i - 690j - 338k,
    but I keep getting it wrong!

    This is what I've done, can anyone please point out my mistake?

    Attachment 703034
Do you agree with the PM's proposal to cut tuition fees for some courses?

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