1.   Find the sum of the infinite series if it exists.
    A. 4 B. 8
    C. 1 D. The sum does not exist.
    Hint

  2.   Express as a rational number of the form .
    A. B.
    C. D.
    Hint

  3.   What is the value of r in an infinite geometric series if a1 = 3 and the sum is 6?
    A. B.
    C. D.
    Hint

  4.   Write the infinite geometric series in sigma notation if a1 = 3 and the sum is 6.
    A. B.
    C. D.
    Hint

  5.   Write as a fraction.
    A. B.
    C. D.
    Hint



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