Solution

回答: 2015 AIME Question #10 Error?dr_yin2015-10-16 14:14:10

所有跟帖: 

这个解法里面没有得出c=0 -怪哉- 给 怪哉 发送悄悄话 怪哉 的博客首页 (100 bytes) () 10/16/2015 postreply 19:25:38

Thanks -dr_yin- 给 dr_yin 发送悄悄话 (0 bytes) () 10/17/2015 postreply 10:57:34

fully expand your equations, c^2 = 49 * a^2 -mondayadvisor- 给 mondayadvisor 发送悄悄话 (290 bytes) () 10/17/2015 postreply 12:14:15

Thanks. -dr_yin- 给 dr_yin 发送悄悄话 (0 bytes) () 10/17/2015 postreply 16:18:24

different way to solve it -mondayadvisor- 给 mondayadvisor 发送悄悄话 (1131 bytes) () 10/16/2015 postreply 20:15:17

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