Expression 19: "f" left parenthesis, "x" , right parenthesis equals "m" Subscript, 1 , Baseline left parenthesis, "x" minus "E" Subscript, 1 , Baseline , right parenthesisfx=m1x−E1
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Expression 20: "g" left parenthesis, "x" , right parenthesis equals negative StartRoot, "s" squared minus left parenthesis, "x" minus "B" Subscript, 1 , Baseline , right parenthesis squared , EndRoot plus "B" Subscript, 2 , Baselinegx=−s2−x−B12+B2
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Expression 21: "f" left parenthesis, "F" Subscript, 1 , Baseline , right parenthesis tilde "g" left parenthesis, "F" Subscript, 1 , Baseline , right parenthesisfF1~gF1
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Expression 22: "F" Subscript, 2 , Baseline equals "g" left parenthesis, "F" Subscript, 1 , Baseline , right parenthesisF2=gF1