<span><span style、" font-family: 宋体;">(<em><span style="font-family: times new roman,times,serif;">A/F</span></em><span style="font-family: times new roman,times,serif;">，</span><em><span style="font-family: times new roman,times,serif;">i</span></em><span style="font-family: times new roman,times,serif;">，</span><em><span style="font-family: times new roman,times,serif;">n</span></em>) = (<em><span style="font-family: times new roman,times,serif;">P/F</span></em><span style="font-family: times new roman,times,serif;">，</span><em><span style="font-family: times new roman,times,serif;">i</span></em><span style="font-family: times new roman,times,serif;">，</span><em><span style="font-family: times new roman,times,serif;">n</span></em>) × (<em><span style="font-family: times new roman,times,serif;">A/P</span></em><span style="font-family: times new roman,times,serif;">，</span><em><span style="font-family: times new roman,times,serif;">i</span></em><span style="font-family: times new roman,times,serif;">，</span><em><span style="font-family: times new roman,times,serif;">n</span></em>)</span></span>
<span><span style、" font-family: 宋体;">(<em><span style="font-family: times new roman,times,serif;">A/P</span></em>，<em><span style="font-family: times new roman,times,serif;">i</span></em>，<em><span style="font-family: times new roman,times,serif;">n</span></em>) = (<em><span style="font-family: times new roman,times,serif;">F/P</span></em><span style="font-family: times new roman,times,serif;">，</span><em><span style="font-family: times new roman,times,serif;">i</span></em><span style="font-family: times new roman,times,serif;">，</span><em><span style="font-family: times new roman,times,serif;">n</span></em> ) × (<em><span style="font-family: times new roman,times,serif;">A/F</span></em><span style="font-family: times new roman,times,serif;">，</span><em><span style="font-family: times new roman,times,serif;">i</span></em><span style="font-family: times new roman,times,serif;">，</span><em><span style="font-family: times new roman,times,serif;">n</span></em>)</span></span>
<span><span style、" font-family: 宋体;">(<em><span style="font-family: times new roman,times,serif;">A/P</span></em><span style="font-family: times new roman,times,serif;">，</span><em><span style="font-family: times new roman,times,serif;">i</span></em><span style="font-family: times new roman,times,serif;">，</span><em><span style="font-family: times new roman,times,serif;">n</span></em>) = (<em><span style="font-family: times new roman,times,serif;">P/F</span></em><span style="font-family: times new roman,times,serif;">，</span><em><span style="font-family: times new roman,times,serif;">i</span></em><span style="font-family: times new roman,times,serif;">，</span><em><span style="font-family: times new roman,times,serif;">n</span></em><span style="font-family: times new roman,times,serif;">1</span>) × (<em><span style="font-family: times new roman,times,serif;">A/F</span></em><span style="font-family: times new roman,times,serif;">，</span><em><span style="font-family: times new roman,times,serif;">i</span></em><span style="font-family: times new roman,times,serif;">，</span><em><span style="font-family: times new roman,times,serif;">n</span></em><span style="font-family: times new roman,times,serif;">2</span>)，<em><span style="font-family: times new roman,times,serif;">n</span></em><span style="font-family: times new roman,times,serif;">1</span><em><span style="font-family: times new roman,times,serif;">+n</span></em><span style="font-family: times new roman,times,serif;">2</span><em><span style="font-family: times new roman,times,serif;">=n</span></em></span></span>
<span><span style、" font-family: 宋体;">(<em><span style="font-family: times new roman,times,serif;">P/F</span></em>，<em><span style="font-family: times new roman,times,serif;">i</span></em>，<em><span style="font-family: times new roman,times,serif;">n</span></em>) = (<em><span style="font-family: times new roman,times,serif;">A/F</span></em>，<em><span style="font-family: times new roman,times,serif;">i</span></em>，<em><span style="font-family: times new roman,times,serif;">n</span></em>) × (<em><span style="font-family: times new roman,times,serif;">P/A</span></em>，<em><span style="font-family: times new roman,times,serif;">i</span></em>，<em><span style="font-family: times new roman,times,serif;">n</span></em>)</span></span>
<span><span style、" font-family: 宋体;">(<span style="font-family: times new roman,times,serif;"><em>F/A</em>，<em>i</em>，<em>n</em></span>) = (<em><span style="font-family: times new roman,times,serif;">P/F</span></em>，<em><span style="font-family: times new roman,times,serif;">i</span></em>，<em><span style="font-family: times new roman,times,serif;">n</span></em>) × (<em><span style="font-family: times new roman,times,serif;">A/P</span></em>，<em><span style="font-family: times new roman,times,serif;">i</span></em>，<em><span style="font-family: times new roman,times,serif;">n</span></em>)</span></span>
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正确答案
(P/F，i，n) = (A/F，i，n) × (P/A，i，n)||(A/P，i，n) = (F/P，i，n ) × (A/F，i，n)||(A/F，i，n) = (P/F，i，n) × (A/P，i，n)
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