一道英语数学题,求意思和过程There is a line of five lattices.Please use three colour-red,green and black to dye them.Each lattice uses one colour.there are _____ways to dye them without two adjoint lattices both being green .
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![一道英语数学题,求意思和过程There is a line of five lattices.Please use three colour-red,green and black to dye them.Each lattice uses one colour.there are _____ways to dye them without two adjoint lattices both being green .](/uploads/image/z/1690443-27-3.jpg?t=%E4%B8%80%E9%81%93%E8%8B%B1%E8%AF%AD%E6%95%B0%E5%AD%A6%E9%A2%98%2C%E6%B1%82%E6%84%8F%E6%80%9D%E5%92%8C%E8%BF%87%E7%A8%8BThere+is+a+line+of+five+lattices.Please+use+three+colour-red%2Cgreen+and+black+to+dye+them.Each+lattice+uses+one+colour.there+are+_____ways+to+dye+them+without+two+adjoint+lattices+both+being+green+.)
一道英语数学题,求意思和过程There is a line of five lattices.Please use three colour-red,green and black to dye them.Each lattice uses one colour.there are _____ways to dye them without two adjoint lattices both being green .
一道英语数学题,求意思和过程
There is a line of five lattices.Please use three colour-red,green and black to dye them.Each lattice uses one colour.there are _____ways to dye them without two adjoint lattices both being green .
一道英语数学题,求意思和过程There is a line of five lattices.Please use three colour-red,green and black to dye them.Each lattice uses one colour.there are _____ways to dye them without two adjoint lattices both being green .
5个格子连成一条线,用红绿蓝三种颜色给每个格子涂色,问有几种情况可以不让两个绿色的挨着.
先选有两个绿色挨着的情况:4+1+3+2+1=11种.
所有的情况3*3*3*3=81种,
结论是81-11=70种.