Write the expression in the standard form a + bi.
A. 
- 
i
B. 
- 
i
C. 
+ 
i
D. 
- 
i
Answer: C
Mathematics
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A. ? B. Both ? and ? C. Neither D. ?
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Write the complex number in trigonometric form r(cos ? + i sin ?), with ? in the interval [0°, 360°).3 - 3
i
A. 6(cos 300° + i sin 300°) B. 6(cos 150° + i sin 150°) C. 3(cos 330° + sin i 330°) D. 3(cos 330° + i sin 330°)
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Solve the equation.
+ 
= -1
A. 
B. ?
C. {1}
D. {0}
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Use a graphing utility to graph the inequality.2x + y - 3 ? 0
A. 
B. 
C. 
D. 
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