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Let r(x) =1/(1-2x). What is r(r(r(r(r(r(30))))) (where r is applied 6 times)?

 Dec 18, 2020
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Just function bash; 1/59 for 1st, 59/57 for second -57/61 for third, 61/175 for fourth, 175/53 for fifth, and finally -53/297

 Dec 18, 2020

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