(1/17+1/19)*20;(1/24+1/29)*30;(1/31+1/37)*40;(1/40+1/47)*50中谁最大?
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![(1/17+1/19)*20;(1/24+1/29)*30;(1/31+1/37)*40;(1/40+1/47)*50中谁最大?](/uploads/image/z/61999-7-9.jpg?t=%EF%BC%881%2F17%2B1%2F19%EF%BC%89%2A20%EF%BC%9B%EF%BC%881%2F24%2B1%2F29%EF%BC%89%2A30%EF%BC%9B%EF%BC%881%2F31%2B1%2F37%EF%BC%89%2A40%EF%BC%9B%EF%BC%881%2F40%2B1%2F47%EF%BC%89%2A50%E4%B8%AD%E8%B0%81%E6%9C%80%E5%A4%A7%3F)
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(1/17+1/19)*20;(1/24+1/29)*30;(1/31+1/37)*40;(1/40+1/47)*50中谁最大?
(1/17+1/19)*20;(1/24+1/29)*30;(1/31+1/37)*40;(1/40+1/47)*50中谁最大?
(1/17+1/19)*20;(1/24+1/29)*30;(1/31+1/37)*40;(1/40+1/47)*50中谁最大?
(1/17+1/19)*20=2.229102167
(1/24+1/29)*30=2.284482759
(1/31+1/37)*40=2.371403662
(1/40+1/47)*50=2.313829787
所以是(1/31+1/37)*40=2.371403662最大