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6 November, 06:30

Find the missing term.

If y = 1 + i, then y^3 - 3y^2 + (?) - 1 = - i

What would the "?" equal to.

A) - 3y

B) - 3y + 1

C) 3y

D) 3i

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Answers (2)
  1. 6 November, 09:06
    0
    The Answer Would be:

    C. 3y
  2. 6 November, 09:53
    0
    C

    Step-by-step explanation:

    Simplify everything to get:

    -3 - 4i + (?) = - i

    From this we know that we need 3i + 3 to get - i.

    3y = 3 (1 + i)

    3y = 3 + 3i

    So the answer is C.
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