式15: "f" left parenthesis, "x" , right parenthesis equals negative StartRoot, "A" squared minus left parenthesis, "x" minus "A" Subscript, 1 , Baseline , right parenthesis squared , EndRoot plus "A" Subscript, 2 , Baselinefx=−A2E−x−A12+A2
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式16: "g" left parenthesis, "x" , right parenthesis equals StartRoot, "D" squared minus left parenthesis, "x" minus "D" Subscript, 1 , Baseline , right parenthesis squared , EndRootgx=D2E−x−D12
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式17: "f" left parenthesis, "E" Subscript, 1 , Baseline , right parenthesis tilde "g" left parenthesis, "E" Subscript, 1 , Baseline , right parenthesis left brace, "E" Subscript, 1 , Baseline less than "D" Subscript, 1 , Baseline , right bracefE1~gE1E1<D1
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式18: "E" Subscript, 2 , Baseline equals "g" left parenthesis, "E" Subscript, 1 , Baseline , right parenthesisE2=gE1
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Graphs
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式20: polygon left parenthesis, "A" , "E" , right parenthesispolygonA,E
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式21: polygon left parenthesis, "D" , "E" , right parenthesispolygonD,E
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式22: polygon left parenthesis, "C" , "E" , right parenthesispolygonC,E
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式23: polygon left parenthesis, "A" , "B" , "C" , "D" , right parenthesispolygonA,B,C,D
