1.

Let \({\left( { - 2 - \frac{1}{3}i} \right)^3} = \frac{{x + iy}}{{27}}\left( {i = \sqrt { - 1} } \right)\), where x and y are real numbers, then y – x equals:

A. 91
B. -85
C. 85
D. -91
Answer» B. -85


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