表达式50: .0 5 9 "x" squared plus "y" squared equals 50.059x2+y2=50
50
表达式51: .0 6 "x" squared plus "y" squared equals 50.06x2+y2=50
51
表达式52: .0 6 1 "x" squared plus "y" squared equals 50.061x2+y2=50
52
表达式53: .0 6 2 "x" squared plus "y" squared equals 50.062x2+y2=50
53
表达式54: .0 6 3 "x" squared plus "y" squared equals 50.063x2+y2=50
54
表达式55: .0 6 4 "x" squared plus "y" squared equals 50.064x2+y2=50
55
表达式56: .0 6 5 "x" squared plus "y" squared equals 50.065x2+y2=50
56
表达式57: .0 6 6 "x" squared plus "y" squared equals 50.066x2+y2=50
57
表达式58: .0 6 7 "x" squared plus "y" squared equals 50.067x2+y2=50
58
表达式59: .0 6 8 "x" squared plus "y" squared equals 50.068x2+y2=50
59
表达式60: .0 6 9 "x" squared plus "y" squared equals 50.069x2+y2=50
60
表达式61: .0 7 "x" squared plus "y" squared equals 50.07x2+y2=50
61
表达式62: .0 7 1 "x" squared plus "y" squared equals 50.071x2+y2=50
62
表达式63: .0 7 2 "x" squared plus "y" squared equals 50.072x2+y2=50
63
表达式64: .0 7 3 "x" squared plus "y" squared equals 50.073x2+y2=50
64
表达式65: .0 7 4 "x" squared plus "y" squared equals 50.074x2+y2=50
65
表达式66: .0 7 5 "x" squared plus "y" squared equals 50.075x2+y2=50
66
表达式67: .0 7 6 "x" squared plus "y" squared equals 50.076x2+y2=50
67
表达式68: .0 7 7 "x" squared plus "y" squared equals 50.077x2+y2=50
68
表达式69: .0 7 8 "x" squared plus "y" squared equals 50.078x2+y2=50
69
表达式70: .0 7 9 "x" squared plus "y" squared equals 50.079x2+y2=50
70
表达式71: .0 8 "x" squared plus "y" squared equals 50.08x2+y2=50
71
表达式72: .0 8 1 "x" squared plus "y" squared equals 50.081x2+y2=50
72
表达式73: .0 8 2 "x" squared plus "y" squared equals 50.082x2+y2=50
73
表达式74: .0 8 3 "x" squared plus "y" squared equals 50.083x2+y2=50
74
表达式75: .0 8 4 "x" squared plus "y" squared equals 50.084x2+y2=50
75
表达式76: .0 8 5 "x" squared plus "y" squared equals 50.085x2+y2=50
76
表达式77: .0 8 6 "x" squared plus "y" squared equals 50.086x2+y2=50
77
表达式78: .0 8 7 "x" squared plus "y" squared equals 50.087x2+y2=50
78
表达式79: .0 8 8 "x" squared plus "y" squared equals 50.088x2+y2=50
79
表达式80: .0 8 9 "x" squared plus "y" squared equals 50.089x2+y2=50
80
表达式81: .0 9 0 "x" squared plus "y" squared equals 50.090x2+y2=50
81
表达式82: .0 9 1 "x" squared plus "y" squared equals 50.091x2+y2=50
82
表达式83: .0 9 2 "x" squared plus "y" squared equals 50.092x2+y2=50
83
表达式84: .0 9 3 "x" squared plus "y" squared equals 50.093x2+y2=50
84
表达式85: .0 9 4 "x" squared plus "y" squared equals 50.094x2+y2=50
85
表达式86: .0 9 5 "x" squared plus "y" squared equals 50.095x2+y2=50
86
表达式87: .0 9 6 "x" squared plus "y" squared equals 50.096x2+y2=50
87
表达式88: .0 9 7 "x" squared plus "y" squared equals 50.097x2+y2=50
88
表达式89: .0 9 8 "x" squared plus "y" squared equals 50.098x2+y2=50
89
表达式90: .0 9 9 "x" squared plus "y" squared equals 50.099x2+y2=50
90
表达式91: "x" squared times "y" squared equals 100 left brace, 70.6 greater than "x" greater than negative 70.6 , right brace left brace, 50 greater than "y" greater than negative 50 , right bracex2·y2=10070.6>x>−70.650>y>−50
91
表达式92: left parenthesis, "x" minus 30 , right parenthesis squared times left parenthesis, "y" minus 20 , right parenthesis squared equals .8 left brace, 25 less than "x" less than 35 , right brace left brace, 15 less than "y" less than 25 , right bracex−302·y−202=.825<x<3515<y<25
92
表达式93: left parenthesis, "x" plus 20 , right parenthesis squared times left parenthesis, "y" plus 40 , right parenthesis squared equals .8 left brace, negative 25 less than "x" less than negative 15 , right brace left brace, negative 35 greater than "y" greater than negative 45 , right bracex+202·y+402=.8−25<x<−15−35>y>−45
93
表达式94: left parenthesis, "x" minus 20 , right parenthesis squared times left parenthesis, "y" plus 20 , right parenthesis squared equals .8 left brace, negative 15 greater than "y" greater than negative 25 , right brace left brace, 15 less than "x" less than 25 , right bracex−202·y+202=.8−15>y>−2515<x<25
94
表达式95: left parenthesis, "x" plus 40 , right parenthesis squared times left parenthesis, "y" minus 30 , right parenthesis squared equals .8 left brace, negative 45 less than "x" less than negative 35 , right brace left brace, 35 greater than "y" greater than 25 , right bracex+402·y−302=.8−45<x<−3535>y>25
95
表达式96: left parenthesis, "x" plus 40 , right parenthesis squared times left parenthesis, "y" plus 20 , right parenthesis squared equals .8 left brace, negative 25 less than "y" less than negative 15 , right brace left brace, negative 35 greater than "x" greater than negative 45 , right bracex+402·y+202=.8−25<y<−15−35>x>−45
96
表达式97: left parenthesis, "x" minus 60 , right parenthesis squared times left parenthesis, "y" minus 40 , right parenthesis squared equals .8 left brace, 55 less than "x" less than 65 , right brace left brace, 35 less than "y" less than 45 , right bracex−602·y−402=.855<x<6535<y<45
97
表达式98: left parenthesis, "x" minus 45 , right parenthesis squared times left parenthesis, "y" plus 35 , right parenthesis squared equals .8 left brace, 40 less than "x" less than 50 , right brace left brace, negative 30 greater than "y" greater than negative 40 , right bracex−452·y+352=.840<x<50−30>y>−40
98
表达式99: left parenthesis, "x" plus 20 , right parenthesis squared times left parenthesis, "y" minus 50 , right parenthesis squared equals .8 left brace, negative 15 greater than "x" greater than negative 25 , right brace left brace, 55 greater than "y" greater than 45 , right bracex+202·y−502=.8−15>x>−2555>y>45