表达式13: "f" left parenthesis, "x" minus 6 , "y" minus 4 , 2 , right parenthesis less than or equal to 1fx−6,y−4,2≤1
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表达式14: "f" left parenthesis, "x" , "y" minus 6 , 99 , right parenthesis less than or equal to .9fx,y−6,99≤.9
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表达式15: "f" left parenthesis, "x" minus 2 , "y" minus 6 , 40 , right parenthesis less than or equal to .9fx−2,y−6,40≤.9
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表达式16: "f" left parenthesis, "x" minus 4 , "y" minus 6 , 20 , right parenthesis less than or equal to .9fx−4,y−6,20≤.9
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表达式17: "f" left parenthesis, "x" minus 6 , "y" minus 6 , 10 , right parenthesis less than or equal to .9fx−6,y−6,10≤.9
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表达式18: "f" left parenthesis, "x" plus 4 , "y" minus 8 , 2 , right parenthesis less than or equal to 1fx+4,y−8,2≤1
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表达式19: "f" left parenthesis, "x" plus 2 , "y" minus 8 , 2 , right parenthesis less than or equal to 1fx+2,y−8,2≤1
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表达式20: "f" left parenthesis, "x" , "y" minus 8 , 2 , right parenthesis less than or equal to 1fx,y−8,2≤1
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表达式21: "f" left parenthesis, "x" minus 2 , "y" minus 8 , 2 , right parenthesis less than or equal to 1fx−2,y−8,2≤1
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表达式22: "f" left parenthesis, "x" minus 4 , "y" minus 8 , 2 , right parenthesis less than or equal to 1fx−4,y−8,2≤1
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表达式23: "f" left parenthesis, "x" minus 6 , "y" minus 8 , 2 , right parenthesis less than or equal to 1fx−6,y−8,2≤1
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表达式24: "f" left parenthesis, "x" minus 8 , "y" minus 8 , 2 , right parenthesis less than or equal to 1fx−8,y−8,2≤1
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表达式25: "f" left parenthesis, "x" minus 10 , "y" minus 8 , 2 , right parenthesis less than or equal to 1fx−10,y−8,2≤1
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表达式26: "f" left parenthesis, "x" , "y" , "n" , right parenthesis equals left parenthesis, abs left parenthesis, "x" , right parenthesis Superscript, "n" , Baseline plus abs left parenthesis, "y" , right parenthesis Superscript, "n" , Baseline , right parenthesis Superscript, StartFraction, 1 Over "n" , EndFraction , Baselinefx,y,n=absxn+absyn1n
