来自贺赛龙的问题
【将1,2,3,4,5,6,7,8,9这九个数字填入括号中,使等式成立()=1/2×()=1/3×()每一个括号中填三位数,1,2,3,4,5,6,7,8,9不能重复】
将1,2,3,4,5,6,7,8,9这九个数字填入括号中,使等式成立
()=1/2×()=1/3×()
每一个括号中填三位数,1,2,3,4,5,6,7,8,9不能重复
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【将1,2,3,4,5,6,7,8,9这九个数字填入括号中,使等式成立()=1/2×()=1/3×()每一个括号中填三位数,1,2,3,4,5,6,7,8,9不能重复】
将1,2,3,4,5,6,7,8,9这九个数字填入括号中,使等式成立
()=1/2×()=1/3×()
每一个括号中填三位数,1,2,3,4,5,6,7,8,9不能重复
共有四种填法:(3)(2)(7)=1/2×(6)(5)(4)=1/3×(9)(8)(1)(1)(9)(2)=1/2×(3)(8)(4)=1/3×(5)(7)(6)(2)(1)(9)=1/2×(4)(3)(8)=1/3×(6)(5)(7)(2)(7)(3)=1/2×(5)(4)(6)=1/3×(8)(1)(9)