p为线段AB的黄金分割点,AP大于BP,其中AP=（根号5）-1,则BP=/
人气：192 ℃ 时间：2020-03-09 14:01:44
解答
设BP=x,则有
|AP|^2=|AB|*|BP|,解方程就行了.
bBP=（（根号5）-1）/2
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