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1. |
is an acute angle of a right triangle. If sin find cos and tan . |
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A. |
cos and tan  |
B. |
cos and tan  |
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C. |
cos and tan  |
D. |
cos and tan  |
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Hint |
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2. |
Find the value of x. Round to the nearest tenth. |
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 |
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A. |
20.3 |
B. |
78.8 |
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C. |
131.6 |
D. |
2.1 |
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Hint |
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3. |
What is sin if is in standard position, its terminal side lies in quadrant IV, and sec ? |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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4. |
Find the exact value of sin 405°. |
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A. |
 |
B. |
- 1 |
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C. |
 |
D. |
 |
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Hint |
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5. |
Determine the solution of XYZ. Round measures of sides to the nearest tenth. |
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A. |
Y = 26.9°, Z = 58.1°, z = 4.9 |
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B. |
There is no solution. |
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C. |
Y = 58.1°, Z = 26.9°, z = 9.4 |
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D. |
Y = 26.9°, Z = 58.1°, z = 9.4 |
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Hint |
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6. |
Determine the period of the function shown below. |
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 |
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A. |
 |
B. |
1 |
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C. |
-1 |
D. |
 |
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Hint |
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7. |
Find sin  |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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8. |
What is the degree measure of the angle through which the hour hand on a clock rotates from 4:00 P.M. to 8:00 P.M.? |
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A. |
120° |
B. |
90° |
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C. |
–90° |
D. |
–120° |
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Hint |
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9. |
What is the radian measurement of 5°? |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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10. |
Which of the following situations will not result in one single solution? |
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A. |
A is obtuse, a > b |
B. |
A is acute,  |
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C. |
A is acute, a < b sin A |
D. |
A is acute, a = b sin A |
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Hint |
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11. |
Suppose C = 44°, a = 6 and b = 9. Find A if a is opposite A. |
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A. |
85.7° |
B. |
94.3° |
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C. |
41.7° |
D. |
6.27 |
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Hint |
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12. |
What method should be used when we have one side and one angle opposite that side? |
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A. |
law of sines |
B. |
law of cosines, then law of sines |
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C. |
cannot be determined from given information |
D. |
law of cosines only |
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Hint |
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13. |
What is the period of the function represented by the graph? |
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 |
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A. |
25 |
B. |
50 |
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C. |
150 |
D. |
10 |
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Hint |
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14. |
Simplify [tan (Arc tan x)] × [(Arc sin (sin y)]. |
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A. |
xy |
B. |
x |
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C. |
x2y2 |
D. |
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Hint |
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