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28 May, 09:59

Write - 3i + (3/4 + 2i) - (9/3 + 3i) as a complex number in standard form.

a. (9/4 + 9i)

b. (-9/4 - 4i)

c. (9i + 9/4)

d.-6i

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Answers (1)
  1. 28 May, 13:24
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    b. - 9/4 - 4i.

    Step-by-step explanation:

    -3i + (3/4 + 2i) - (9/3 + 3i)

    = - 3i + 3/4 + 2i - 9/3 - 3i

    = 3/4 - 9/3 - 3i - 3i + 2i

    = - 9/4 - 4i.
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