1.   Use the first three terms of the trigonometric series to approximate the value of to four decimal places.
    A. 1.9800 B. -0.4665
    C. 0.0408 D. 0.0200
    Hint

  2.   Write in exponential form.
    A. B.
    C. D.
    Hint

  3.   Find ln (-7) to four decimal places.
    A. B.
    C. D.
    Hint

  4.   Use the first three terms of the trigonometric series and a calculator to approximate the value of to four decimal places.
    A. 1.2491 B. 0.8453
    C. 0.8663 D. 0.866
    Hint

  5.   Write in exponential form.
    A. B.
    C. D.
    Hint