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20. V2 ^~7T + i sin ~7r^
22. 2 (cos §tt + i sin §7r \ 6 6
24. 2 (cos j + i sin £|
26. cos -7r + i sin -7r
28. 6 (cos — +1 sin —J
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73. y2 < 1 — 2x, x < ^
75. - 2)2 + y2 = 4, ir#0
77. x - y = 1
70. ® = -1, y € H
81. ®2 = y2
83. x2 - y2 = 9
85. ®2 + y2 > 1
87. x2 + 16y = 0, y > 4
80. c = 1
01. -1-4 i
03. 12
05. x = 1, y-2 07. x + 2y = 0, z ^0
00.® = --, 2/ = -4 o 1
56. -\/65
13 60. -3 - i 9 ,
io4 64. Sprzeczne 66. (x-l)2 +# = 4 68. (z - l)2Vl- (y + l)2 Igi 70. x2 + (y + 2)2 <1 72. x,y e IR 74. 16z2y2 < 1
76. x2 + (y + 2)"2 = 4, z ± 0
78. X = 2, y € H
80. y > 8, ® G IR
82. xy — l
84. y2 — x2 = 1
86. 1 < x2 + (y + l)2 <4
90. c = 2
94. -16
I 7
96. x = yg-24
98. x =rj-ly y = 0
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