Solve the equation in the complex number system.x2 + x + 1 = 0
A. {
, 
}
B. {
, 
}
C. {- 
- 
i, - 
+ 
i}
D. {
- 
i, 
+ 
i}
Answer: C
Mathematics
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Identify the figure as a line, segment, or ray. Then use the correct symbol to name the figure.
A. ray;
B. line segment; 
C. line; 
D. ray; 
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Find the eccentricity of the ellipse.x2 + 2y2 = 6
A. 
B. 
C. 
D. 
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Express the interval in set-builder notation and graph the interval on a number line.[-3, 7]
A. {x 
}
B. {x 
}
C. {x 
}
D. {x 
}
Mathematics
Decompose v into two vectors v1 and v2, where v1 is parallel to w and v2 is orthogonal to w.v = 3i + 2j, w = 3i + j
A. v1 = 
(3i + j), v2 = 
i + 
j
B. v1 = 
(3i + j), v2 = 
i + 
j
C. v1 = 
(3i + j), v2 = - 
i + 
j
D. v1 = 
(3i + j), v2 = 
i + 
j
Mathematics