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wu :: forums    riddles    medium (Moderators: towr, SMQ, Icarus, Grimbal, william wu, ThudnBlunder, Eigenray)    Subtract Exponent Products, Get 1 « Previous topic | Next topic » Pages: 1  Reply Notify of replies Send Topic Print    Author  Topic: Subtract Exponent Products, Get 1  (Read 468 times) K Sengupta Senior Riddler     Gender: Posts: 371 Subtract Exponent Products, Get 1   « on: Jun 25th, 2008, 8:38am » Quote Modify Determine all possible quadruplet(s) (P, Q, R, S) of nonnegative integers that satisfy this equation:   2P*3Q – 5R*7S = 1 IP Logged Eigenray wu::riddles Moderator Uberpuzzler     Gender: Posts: 1948 Re: Subtract Exponent Products, Get 1   « Reply #1 on: Jun 26th, 2008, 12:31am » Quote Modify I think this theorem will help (for some cases; then reduce to those cases). « Last Edit: Jun 26th, 2008, 12:53am by Eigenray » IP Logged Pages: 1  Reply Notify of replies Send Topic Print Forum Jump: ----------------------------- riddles -----------------------------  - easy => medium   - hard   - what am i   - what happened   - microsoft   - cs   - putnam exam (pure math)   - suggestions, help, and FAQ   - general problem-solving / chatting / whatever ----------------------------- general -----------------------------  - guestbook   - truth   - complex analysis   - wanted   - psychology   - chinese « Previous topic | Next topic »

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