【多选题】【消耗次数：1】
在利率和计息期相同的条件下，下列公式中，正确的有（ ）。
①
普通年金现值系数＝（复利现值系数－1）/i
②
普通年金终值系数＝（复利终值系数－1）/i
③
普通年金现值系数×（1+i）＝预付年金现值系数
④
普通年金终值系数×普通年金现值系数＝1
参考答案：
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