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Rationalize the denominator: `(4)/(4+sqrt(5))`
The result can be expressed in the form `A/B` where
`A` =
`B` =
Do not use a decimal approximation for square roots. To enter a number like `5sqrt(7)`, type 5*sqrt(7), and preview your answer before submitting. `16 - 4 sqrt(5)`
`11`