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    So firstly sorry for the horizontalness of the pic and the messy handwriting...

    Am I doing the right thing? And what should I do with those two values of W?

    I can't access the answers for this so I'm just wondering if I am doing it right?

    Zacken
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    (Original post by homeland.lsw)
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    So firstly sorry for the horizontalness of the pic and the messy handwriting...

    Am I doing the right thing? And what should I do with those two values of W?

    I can't access the answers for this so I'm just wondering if I am doing it right?

    Zacken
    So basically you have x_{\text{min}} = 5.425 and x_{\text{max}} = 5.435 (and similar for y min and max).

    Then to get the biggest value of w, you want biggest value of x / smallest value of y ( can you see why?)

    So \displaystyle w_{\text{max}} = \sqrt{\frac{x_{\text{max}}}{ y_{\text{min}}} } - can you then see what you need to do for w_{\text{min}}?
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    (Original post by Zacken)
    So basically you have x_{\text{min}} = 5.425 and x_{\text{max}} = 5.435 (and similar for y min and max).

    Then to get the biggest value of w, you want biggest value of x / smallest value of y ( can you see why?)

    So \displaystyle w_{\text{max}} = \sqrt{\frac{x_{\text{max}}}{ y_{\text{min}}} } - can you then see what you need to do for w_{\text{min}}?
    so to a suitable degree of accuracy means the biggest value possible?
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    (Original post by homeland.lsw)
    so to a suitable degree of accuracy means the biggest value possible?
    Sorry, just properly read your question, you'd already done that bit! Uhm, basically, to a suitable degree of accuracy means the value of w that both w_{\text{min}} and w_{\text{max}} round off to the same thing.

    So, ask yourself is w=1.0962 is suitable by checking whether w = 1.0973 rounds to that. Obviously not.

    Is w = 1.096 suitable? Does both w = 1.0973 and w = 1.0962 round off to that (to 3 d.p)? Obviously not.

    What about w = 1.10 (2 d.p). Do both values of w round off to that? If so, then that's the suitable degree, other wise try once decimal place and then one significant figure, etc...
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    (Original post by Zacken)
    Sorry, just properly read your question, you'd already done that bit! Uhm, basically, to a suitable degree of accuracy means the value of w that both w_{\text{min}} and w_{\text{max}} round off to the same thing.

    So, ask yourself is w=1.0962 is suitable by checking whether w = 1.0973 rounds to that. Obviously not.

    Is w = 1.096 suitable? Does both w = 1.0973 and w = 1.0962 round off to that (to 3 d.p)? Obviously not.

    What about w = 1.10 (2 d.p). Do both values of w round off to that? If so, then that's the suitable degree, other wise try once decimal place and then one significant figure, etc...
    Thanks Zacken!!! helpful as usual!!!
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    (Original post by homeland.lsw)
    Thanks Zacken!!! helpful as usual!!!
 
 
 
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