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21-10-2016
Mathematics

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What is equivalent to 13 - √-18?

4
13 - 9i
13 + 9i
22

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21-10-2016

√-1=i

13-√-18=
13-√(-1)(18)=
13-(√-1)(√18)=
13-(i)(3√2)=
13-3i√2

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