Beyond the Basics

  1. 67. A(1, 0), B(6, 0), d(A, B)=5

  2. 69. A(2,1), B(2, 3), d(A, B)=42

  3. 71. (0,3)

  4. 73. c=±2

  5. 75. c=±25

  6. 77. { (13,18), (18, 13) }

  7. 79. {(1, 1), (1, 1), (1,1), (1,1)}

  8. 81. ± (2+3i)

  9. 83. ± (43i)

  10. 85. ± (4+3i)

  11. 87. {(1,7)}

  12. 89. {(1,5)}

  13. 91. { (1, 0), (2, ln 2ln 3) }

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