1.   Simplify i1300.
    A. i B. 1
    C. 0 D. i
    Hint

  2.   Simplify the expression (5 – 2i) – (2 – 7i).
    A. 7 + 5i B. 3 + 5i
    C. 3 – 9i D. 7 – 9i
    Hint

  3.   What is the conjugate of –9 – 2i?
    A. –9 + 2i B. 2 + 9i
    C. 9 D. 2 – 9i
    Hint

  4.   What is the complex conjugate of a - bi, if a and b are real numbers?
    A. a + bi B. a - bi
    C. a2 + b2 - abi D.
    Hint

  5.   Evaluate i4n +2, where n is a positive integer.
    A. 1 B. i
    C. -i D. -1
    Hint



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