Write the complex number in polar form. Express the argument in degrees, rounded to the nearest tenth, if necessary.
+ i
A. 2(cos 60° + i sin 60°)
B. 4(cos 30° + i sin 30°)
C. 4(cos 60° + i sin 60°)
D. 2(cos 30° + i sin 30°)
Answer: D
Mathematics
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B. f-1(x) = 
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C. f-1(x) = 
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D. f-1(x) = 
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Use grouping to help factor the expression.x3 + 3x2 - 64x - 192
A. (x + 8)(x - 8)(x + 3) B. (x - 8)(x - 8)(x + 3) C. (x - 3)(x + 8)2 D. (x + 8)(x - 3)2
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Is it possible using only a straightedge and a compass, to reproduce a circle with a radius congruent to 
?
?
?
?
A. No B. Yes
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