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April 19th, 2014, 07:07 AM   #1
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Want to know how to do.

I saw a post in the forum. But seems no one cares him.

I wanna know how to solve these question too. Anyone?
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April 19th, 2014, 12:02 PM   #2
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(i) x/1 = (x + 1)/x implies x² - x - 1 = 0, whose positive root is the golden ratio.
(ii) y/x = (x + y)/y implies y/x = (1 + y/x)/(y/x), so the answer is "yes".
(iii) Have a go at this. At least one method is very easy.
(iv) The biggest rectangle is a square. Please post your attempt for this question.
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