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" 59.If "(x+y):(x-y)=4:1," then "(x^(2)+...

" 59.If "(x+y):(x-y)=4:1," then "(x^(2)+y^(2)):(x^(2)-y^(2))

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If (x+y): (x-y)= 4:1, then find the ratio (x^(2)+y^(2)):(x^(2)-y^(2))

Find the compounded ratio of: (x+y): (x-y), (x^(2) + y^(2)): (x+y)^(2) and (x^(2)-y^(2))^(2): (x^(4)-y^(4))

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