Difference between revisions of "Proportion/Intermediate"

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Revision as of 17:54, 9 October 2007

Problem

$x$ is directly proportional to the sum of the squares of $y$ and $z$ and inversely proportional to $y$ and the square of $z$. If $x = 8$ when $y = 1/2$ and $z = \sqrt {3}/2$, find $y$ when $x = 1$ and $z = 6$.

Solution

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