Determine two pairs of polar coordinates for the point with 0° ? ? < 360°.(-2
, 2
)
A. (2
, 120°), (-2
, 240°)
B. (2
, 150°), (-2
, 210°)
C. (2
, 30°), (-2
, 330°)
D. (2
, 135°), (-2
, 315°)
Answer: D
Mathematics
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Use the counting principle to obtain the answer.A saleswoman packed 3 jackets and 6 skirts. With one jacket, she could wear all 6 skirts. With another jacket, she could wear 5 skirts. With the third jacket, she could wear only 2 skirts. How many different combinations did she have?
A. 13 B. 60 C. 12 D. 32
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Divide.
A. 
- 
+ 
B. 8x2 - 8x + 64
C. 
- 
+ 
D. 8x - 8 + 
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Find the nonreal complex solutions of the equation.x2 - 4x + 29 = 0
A. {-2 + 5i, -2 - 5i} B. {7, -3} C. {4 + 10i, 4 - 10i} D. {2 + 5i, 2 - 5i}
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Find the special product.(7 - y5)(7 + y5)
A. y10 - 49 B. 49 - y25 C. 49 - y5 D. 49 - y10
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