Use De Moivre's theorem to evaluate the expression. Write the result in standard form.(-3 + 3i
)3
A. -3 + 3i
B. 27
C. 27 + 9i
D. 216
Answer: D
Mathematics
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Find the exact value in radians.cos-1 0
A. ?
B. 
C. 
D. 0
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Use Cramer's rule to solve the system. 4x + 4z = 40-7x + 5y + 6z = 64-2x - 2y = -16
A. {(2, 6, 8)} B. {(3, 4, 8)} C. {(2, -6, -8)} D. {(6, 8, 6)}
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Evaluate the function at the indicated value.Find f(4) when f(x) = 
.
A. 2
B. 3
C. 2
D. 
Mathematics
Write the x- and y-intercepts of the graph.
A. x-intercept: 2; y-intercept: -8 B. x-intercept: -2; y-intercept: -8 C. x-intercept: -2; y-intercept: 8 D. x-intercept: 2; y-intercept: 8
Mathematics