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4 July, 13:44

What is equivalent to 13 - √-18?

4

13 - 9i

13 + 9i

22

+1
Answers (1)
  1. 4 July, 17:17
    0
    √-1=i

    13-√-18=

    13-√ (-1) (18) =

    13 - (√-1) (√18) =

    13 - (i) (3√2) =

    13-3i√2
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