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1. |
Graph y = . |
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A. |
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B. |
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C. |
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D. |
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Hint |
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2. |
Find tan if 90° < < 180°, and csc . |
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A. |
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B. |
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C. |
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D. |
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Hint |
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3. |
Simplify the expression sin x(1 + cot2x) |
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A. |
csc x |
B. |
sin2x |
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C. |
1 + cos2x |
D. |
sin x tan x |
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Hint |
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4. |
Write (cos x)(sec x cos x) as an expression involving only sin x. |
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A. |
1- sin2x |
B. |
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C. |
sin2x |
D. |
2 sin x |
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Hint |
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5. |
is equivalent to _____. |
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A. |
sin2x + cos x |
B. |
2 tan x |
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C. |
cot2x |
D. |
tan2x - 1 |
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Hint |
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6. |
Determine the solution of 3 sin x + 2 = cos 2x for . |
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A. |
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B. |
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C. |
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D. |
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Hint |
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7. |
What is the amplitude and period of the function y = 3 cos (- )? |
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A. |
Amplitude = 3, Period = 2 |
B. |
Amplitude = 3, Period =  |
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C. |
Amplitude = 3, Period =  |
D. |
Amplitude = 2, Period =  |
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Hint |
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8. |
What is the midline of the function y = 2 sin 4? |
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A. |
y = 4 |
B. |
y = 4 |
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C. |
y = 2 |
D. |
y = 2 |
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Hint |
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9. |
For the function y = cos ( 50) + 3, what does the number 3 represent? |
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A. |
period |
B. |
vertical shift |
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C. |
horizontal shift |
D. |
amplitude |
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Hint |
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10. |
Which statement is true? |
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A. |
sin 30° = cos 300° |
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B. |
cos 135° = sin 45° |
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C. |
sin 45° = cos (45°) |
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D. |
cos 225° = sin 45° |
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Hint |
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11. |
Which statement is false? |
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A. |
cos 405° = sin 225° |
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B. |
sin 450° = cos 180° |
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C. |
cos 210° = sin 240° |
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D. |
sin 30° = cos 120° |
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Hint |
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12. |
Find the exact value of sin 165°. |
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A. |
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B. |
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C. |
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D. |
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Hint |
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13. |
Find cos if sin x = and x is in the second quadrant. |
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A. |
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B. |
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C. |
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D. |
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Hint |
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14. |
Solve . |
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A. |
0°, 180° |
B. |
90°, 270° |
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C. |
0°, 90°, 180°, 270° |
D. |
0°, 90°, 270° |
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Hint |
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