DeMoivre's Theorem can be used to find reciprocals of complex numbers. Recall from algebra that the reciprocal of x is 
, which can be expressed as 
.
?
Use this fact, along with DeMoivre's Theorem, to find the reciprocal of the number below.
?
?
?
A. 
B. 
C. 
D. 
E. 
Answer: E
Mathematics
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Simplify the expression. Write the answer using positive exponents.
A. 
B. 4r-5
C. 4r5
D. 4
Mathematics
Calculate the derivative of the function. Then find the value of the derivative as specified.
t = -1 if s = t2 - t
A. 
= 2t + 1; 
t = -1
= -1
B. 
= 2t - 1; 
t = -1
= -3
C. 
= t - 1; 
t = -1
= -2
D. 
= 2 - t; 
t = -1
= 3
Mathematics
Make the indicated conversion.Convert 1100110010100two to hexadecimal.
A. 331116 B. 199416 C. 1462416 D. 14A2416
Mathematics
Solve the compound inequality and graph the solution set on a number line. Except for the empty set, express the solution set in interval notation.x ? 3 and x ? -2
A. ?
B. (-2, 3)
C. [-2, 3]
D. (-?, -2] ? [3, ?)
Mathematics