Multiple Choice
Identify the
choice that best completes the statement or answers the question.
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1.
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Graph one complete cycle of  by first rewriting the right
side in the form  .
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2.
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Find the identical expression for the following.  a. | tan x | b. | - sin x | c. | sin
x | d. | cos x | e. | - cos x |
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3.
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Write the expression as a single trigonometric function.
cos 6x
cos 3x - sin 6x sin 3x
a. | cos 8x | b. | cos 6x | c. | cos
5x | d. | cos 9x | e. | cos 11x |
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4.
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Find the identical expression for the following. 
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5.
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Use your graphing calculator to determine if the equation appears to be an
identity by graphing the left expression and right expression together.  a. | This is not an identity. | b. | This is an
identity. |
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6.
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Find the identical expression for the following.  a. | 0 | b. | - cos x | c. | sin
x | d. | - sin x | e. | cos x |
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7.
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Write the expression as a single trigonometric function.
sin 7x
cos 2x - cos 7x sin 2x
a. | sin 7x | b. | sin 4x | c. | sin
5x | d. | sin 2x | e. | sin x |
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8.
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Find the identical expression for the following.  a. | tan x | b. | sin x | c. | cos
x | d. | - cos x | e. | - sin x |
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9.
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Find exact value for the following: 
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10.
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Find the exact value for the following. 
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