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Complex Numbers question

2019 · 11 Jan · Shift 1 · Q38
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  5. /2019 · 11 Jan · Shift 1 · Q38

Complex Numbers question

2019 · 11 Jan · Shift 1 · Q38

JEE MainMathematicsComplex NumbersMCQ+4 / −1
Let (−2−13i)3=x+iy27(i=−1),  {\left( { - 2 - {1 \over 3}i} \right)^3} = {{x + iy} \over {27}}\left( {i = \sqrt { - 1} } \right),\,\,(−2−31​i)3=27x+iy​(i=−1​), where x and y are real numbers, then y −-− x equals :
  1. A
    −-− 85
  2. B
    85
  3. C
    −-− 91
  4. D
    91
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