有若干个数a1 a2 a3…an.规定a2=1/1-a1,a3=1/1-a2,a4=1/1-a3,……an=1/an-1.若a1=2/3,则a2=___,a3=___,a4=___,a2013=___.
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![有若干个数a1 a2 a3…an.规定a2=1/1-a1,a3=1/1-a2,a4=1/1-a3,……an=1/an-1.若a1=2/3,则a2=___,a3=___,a4=___,a2013=___.](/uploads/image/z/7834863-39-3.jpg?t=%E6%9C%89%E8%8B%A5%E5%B9%B2%E4%B8%AA%E6%95%B0a1+a2+a3%E2%80%A6an.%E8%A7%84%E5%AE%9Aa2%3D1%2F1-a1%2Ca3%3D1%2F1-a2%2Ca4%3D1%2F1-a3%2C%E2%80%A6%E2%80%A6an%3D1%2Fan-1.%E8%8B%A5a1%3D2%2F3%2C%E5%88%99a2%3D___%2Ca3%3D___%2Ca4%3D___%2Ca2013%3D___.)
有若干个数a1 a2 a3…an.规定a2=1/1-a1,a3=1/1-a2,a4=1/1-a3,……an=1/an-1.若a1=2/3,则a2=___,a3=___,a4=___,a2013=___.
有若干个数a1 a2 a3…an.规定a2=1/1-a1,a3=1/1-a2,a4=1/1-a3,……an=1/an-1.
若a1=2/3,则a2=___,a3=___,a4=___,a2013=___.
有若干个数a1 a2 a3…an.规定a2=1/1-a1,a3=1/1-a2,a4=1/1-a3,……an=1/an-1.若a1=2/3,则a2=___,a3=___,a4=___,a2013=___.
a2=3,a3=-1/2,a4=2/3,可知,是周期循环的,周期为3,则2012=3×671+0,故与a3的值相等,为-1/2
3 ;-1/2 ;2/3 ;3 ; 2/3 (三个一循环)