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初中数学 中考数学 日本竞赛题 这个题目对于初中学霸来说很轻松
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App02:27![初中数学 数学思维拓展 已知ab=1，求[1/(a+1)+1/(b+1)]^2019](http://p3-sign.bdxiguaimg.com/tos-cn-i-0000/ba89943a9c6f11e9ad647cd30a55d46c~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202411090746459BF068DD478DC8DE59F0&requestFrom=704&version_code=80402&x-expires=1762645606&x-signature=4aYN0PyZNR5ImguUDiQ6ETPpX%2Bw%3D)
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