72是奇2的意思.
很多人知道,買債券翻倍的年數與72有關,如3,4,5...%的債券大約72/3,72/5,72/5...年.
但是有知道7.846871453%人嗎?
(1.07846871453)^(72/7.846871453)=2.
如x
x>7.846871453%,翻倍的年數>72/x
為什麽?
72是奇2的意思.
很多人知道,買債券翻倍的年數與72有關,如3,4,5...%的債券大約72/3,72/5,72/5...年.
但是有知道7.846871453%人嗎?
(1.07846871453)^(72/7.846871453)=2.
如x
x>7.846871453%,翻倍的年數>72/x
為什麽?
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