Multiple Choice
Identify the
choice that best completes the statement or answers the question.
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1.
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What is an equivalent expression for  ?
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2.
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Which expression is equivalent to  ?
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3.
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Which expression is equivalent to  ?
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4.
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Express  in terms of cosine and sine only, and simplify. A. | 0 | C. | 1 | B. |  | D. |  |
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5.
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Simplify  .
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6.
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Simplify  .
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7.
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Which expression is equivalent to  ?
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8.
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What is the solution to the equation  over the domain  ?
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9.
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What is the solution to the equation  over the domain  ? A. | 60° and 240° | C. | no solution | B. | 120°, 180°, and 240° | D. | 120° |
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10.
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What is the general solution, in degress, to the equation  ?
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Short Answer
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1.
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Find the exact value of  .
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2.
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Determine the value of  if  and  .
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3.
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Verify graphically that  for  .
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Problem
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1.
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Express  in terms of cosines and sines of x, y,
and z.
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2.
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Solve  over the domain  .
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