式18: left parenthesis, "x" plus 1.8 5 , right parenthesis squared plus left parenthesis, "y" minus .2 , right parenthesis squared equals .0 0 4x+1.852+y−.22=.004
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式19: left parenthesis, negative 1.8 5 , .2 , right parenthesis−1.85,.2
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式20: "x" equals sine left parenthesis, "y" , right parenthesis plus 6 left brace, 0 less than "y" less than 3.5 , right bracex=siny+60<y<3.5
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式21: "x" equals sine left parenthesis, "y" , right parenthesis plus 5.8 left brace, 0 less than "y" less than 3.9 , right bracex=siny+5.80<y<3.9
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式22: "y" less than or equal to 1sine left parenthesis, 1 half "x" plus "c" , right parenthesis plus 5 plus "j" left brace, negative 12 less than or equal to "x" less than or equal to 12 , right bracey≤1sin12x+c+5+j−12≤x≤12
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式23: "c" equals negative 8c=−8
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式24: "j" equals 2.3j=2.3
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式25: left parenthesis, left parenthesis, 2 plus sin left parenthesis, 12 "t" , right parenthesis , right parenthesis cos left parenthesis, "t" , right parenthesis plus 3.6 , left parenthesis, left parenthesis, 4 plus sin left parenthesis, 12 "t" , right parenthesis , right parenthesis sin left parenthesis, "t" , right parenthesis plus .0 , right parenthesis , right parenthesis2+sin12tcost+3.6,4+sin12tsint+.0
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式26: left parenthesis, "x" minus 4.7 , right parenthesis squared plus left parenthesis, "y" minus .2 , right parenthesis squared equals .0 4x−4.72+y−.22=.04
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式27: left parenthesis, "x" minus 4.9 , right parenthesis squared plus left parenthesis, "y" minus .6 , right parenthesis squared equals .0 4x−4.92+y−.62=.04
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式28: left parenthesis, "x" minus 4.9 , right parenthesis squared plus left parenthesis, "y" minus 1 , right parenthesis squared equals .0 4x−4.92+y−12=.04
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式29: left parenthesis, "x" minus 4.7 6 , right parenthesis squared plus left parenthesis, "y" minus 1.4 , right parenthesis squared equals .0 4x−4.762+y−1.42=.04
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式30: left parenthesis, "x" minus 4.7 6 , right parenthesis squared plus left parenthesis, "y" minus 1.8 , right parenthesis squared equals .0 3x−4.762+y−1.82=.03
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式31: left parenthesis, "x" minus 4.8 6 , right parenthesis squared plus left parenthesis, "y" minus 2.1 , right parenthesis squared equals .0 2x−4.862+y−2.12=.02
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式32: left parenthesis, "x" minus 4.8 6 , right parenthesis squared plus left parenthesis, "y" minus 2.4 5 , right parenthesis squared equals .0 2x−4.862+y−2.452=.02
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式33: left parenthesis, "x" minus 4.7 8 6 , right parenthesis squared plus left parenthesis, "y" minus 2.7 5 , right parenthesis squared equals .0 1x−4.7862+y−2.752=.01
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式34: left parenthesis, "x" minus 4.7 8 6 , right parenthesis squared plus left parenthesis, "y" minus 3 , right parenthesis squared equals .0 1x−4.7862+y−32=.01
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式35: left parenthesis, "x" minus 4.8 6 , right parenthesis squared plus left parenthesis, "y" minus 3.3 , right parenthesis squared equals .0 0 4x−4.862+y−3.32=.004