Use De Moivre's theorem to evaluate the expression. Write the result in standard form.(2(cos 90° + i sin 90°))3
A. -8i
B. -8
C. 0
D. -6i
Answer: B
Mathematics
You might also like to view...
Express the area of the region bounded by the given line(s) and/or curve(s) as an iterated double integral.The parabola 
and the line 
A. 
B. 
C. 
D. 
Mathematics
Translate the question into an equation. Do not solve.94% of 35 is what number?
A. 94% = 35 ? x B. 94% ? x = 35 C. 94 ? 35 = x D. 94% ? 35 = x
Mathematics
Find the derivative of the function.y = 
A. y ' = 
B. y ' = 
C. y ' = 
D. y ' = 
Mathematics
Use a proportion to solve the problem.The ratio of the lengths of strings that play the notes D and A is 3 to 2. If a string 42 centimeters long plays a D, what is the length of the string that plays an A?
A. 44 centimeters B. 45 centimeters C. 63 centimeters D. 28 centimeters
Mathematics