Expression 15: "f" left parenthesis, "x" , right parenthesis equals "B" Subscript, 2 , Baselinefx=B2
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Expression 16: "g" left parenthesis, "x" , right parenthesis equals StartRoot, "d" squared minus "x" squared , EndRootgx=d2−x2
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Expression 17: "f" left parenthesis, "C" Subscript, 1 , Baseline , right parenthesis tilde "g" left parenthesis, "C" Subscript, 1 , Baseline , right parenthesis left brace, "A" Subscript, 1 , Baseline less than "C" Subscript, 1 , Baseline , right bracefC1~gC1A1<C1
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Expression 18: "C" Subscript, 2 , Baseline equals "g" left parenthesis, "C" Subscript, 1 , Baseline , right parenthesisC2=gC1