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anonymous

  • one year ago

How would I solve these questions? Find complex roots in polar form 1)the fourth roots of 4-4sqrt3i 2)cube roots of -1-i

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  1. Loser66
    • one year ago
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    1) we have formula for this fourth root of z means \(\sqrt[4]z\) , right?

  2. Loser66
    • one year ago
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    it is \(z^{1/4}\) , right?

  3. anonymous
    • one year ago
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    yes i think so

  4. Loser66
    • one year ago
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    so, if you set \(z= 4-4i\sqrt3\)

  5. Loser66
    • one year ago
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    your x =4, your y = -4sqrt 3

  6. Loser66
    • one year ago
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    hence in polar form, you have z =???

  7. anonymous
    • one year ago
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    sorry im still new to this concept. im a little confused about how we split the equation to find x and y

  8. Loser66
    • one year ago
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    so, read it first http://www.intmath.com/complex-numbers/4-polar-form.php

  9. Loser66
    • one year ago
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    click on answer to read how it is going on.

  10. anonymous
    • one year ago
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    ohh i see thanks for that link

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