【導(dǎo)讀】 ?。弧 ?。1836??解: 。2423622?? 。4332=+;8636??=+。8636??=+。323.2?=。42223622???=。12325;25353.???? 。12325??解: ??????25353?? 。22325215??=+。22215??=。1322??=;2253?=。53?=。公式仍然適用.5321 。540802 。25353?? 。baba??34 。2325????610?5110254??????154422?6535252????6555???1155??2233bbabaa??????32.aabb???74741?? 。2233? 。26262?? 。22524? 。2274??=9;2226??=4;2223223????743??222252252?????22410.??