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Elenathehomeschooler

  • one year ago

Can someone please explain how to solve this! simplify the expressions using imaginary numbers sqrt. -16

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  1. amistre64
    • one year ago
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    -16 = -1*16 right?

  2. Elenathehomeschooler
    • one year ago
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    Yes

  3. amistre64
    • one year ago
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    then split the radical and work the definitions ...

  4. amistre64
    • one year ago
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    \[\sqrt{-16}\] \[\sqrt{-1*16}\] \[\sqrt{-1}~\sqrt{16}\]

  5. Elenathehomeschooler
    • one year ago
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    would that be the answer?

  6. Elenathehomeschooler
    • one year ago
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    @amistre64 ?

  7. amistre64
    • one year ago
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    can sqrt(16) be simplified? can sqrt(-1) be simplified? or restated?

  8. amistre64
    • one year ago
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    sites getting laggy, at least on my end ...

  9. Elenathehomeschooler
    • one year ago
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    the sqrt of 16 is 4 right?

  10. amistre64
    • one year ago
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    yes

  11. amistre64
    • one year ago
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    and by definintoin, i = sqrt(-1)

  12. Elenathehomeschooler
    • one year ago
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    is the answer |dw:1444081937413:dw|

  13. amistre64
    • one year ago
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    no, sqrt(16) is not sqrt(4) ..... 4i is fine

  14. Elenathehomeschooler
    • one year ago
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    oh okay thanks !

  15. amistre64
    • one year ago
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    youre welcome

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