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15 August, 21:54

Which expression is equivalent to (2-√-4) + (1+√-49) ?

3-5i

3+5i

8+0i

-2+0i

+3
Answers (1)
  1. 15 August, 23:45
    0
    3 + 5i.

    Step-by-step explanation:

    (2-√-4) + (1+√-49)

    √-4 = 2i and

    √-49 = 7i.

    So (2-√-4 + (1+√-49

    = (2 - 2i) + (1 + 7i)

    = 3 + - 2i + 7i

    = 3 + 5i.
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