Question

if y=3-√8,then (y-1÷y)^2​

Answer 1

Answer:

-4

Step-by-step explanation:

given

$y = 3 - \sqrt{8}$

$( { \frac{y - 1}{y} })^{2} ={ (\frac{3 - \sqrt{8 } - 1}{3 - \sqrt{8} } ) }^{2} = ({ \frac{2 - \sqrt{8} }{3 - \sqrt{8} } })^{2} = \frac{4 - 8}{9 - 8} = \frac{ - 4}{1} = - 4$

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Answer 2

Answer:

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Step-by-step explanation:

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