Express the indicated roots of unity in standard form a + bi.Cube roots of unity
A. cos 
+ i sin 
= 0.5 + 
i
cos 
+ i sin 
= -0.5 + 
i
cos 
+ i sin 
= -0.5 - 
i
B. 1 + 0i
cos 
+ i sin 
= -0.5 + 
i
cos 
+ i sin 
= -0.5 - 
i
C. 1 + i
cos 
+ i sin 
= -0.5 + 
i
cos 
+ i sin 
= -0.5 - 
i
D. 1 + 0i
cos 
+ i sin 
= 0.5 + 
i
cos 
+ i sin 
= -0.5 + 
i
Answer: B
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A. y= - 
x - 
B. y = -2x + 2
C. y= - 
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Find (f ? g)(x).
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.
A. 
B. 
C. 
D. 