Expression 16: "g" left parenthesis, "x" , right parenthesis equals negative StartRoot, "R" squared minus "x" squared , EndRootgx=−R2−x2
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Expression 17: "f" left parenthesis, "A" Subscript, 1 , Baseline , right parenthesis tilde "g" left parenthesis, "A" Subscript, 1 , Baseline , right parenthesisfA1~gA1
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Expression 18: "A" Subscript, 2 , Baseline equals "g" left parenthesis, "A" Subscript, 1 , Baseline , right parenthesisA2=gA1