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Destinyyyy

  • one year ago

Help..

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  1. Destinyyyy
    • one year ago
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    -20+ square root -50/60

  2. SolomonZelman
    • one year ago
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    \(\large\color{black}{ \displaystyle -20+\sqrt{-\frac{50}{60}~\color{white}{\Huge|}} }\) like this?

  3. Destinyyyy
    • one year ago
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    the 60 is under the whole equation

  4. SolomonZelman
    • one year ago
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    \(\large\color{black}{ \displaystyle \frac{-20+\sqrt{-50}}{60} }\)

  5. SolomonZelman
    • one year ago
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    lihe that \(\Uparrow\) ?

  6. SolomonZelman
    • one year ago
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    like*

  7. Destinyyyy
    • one year ago
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    Yes

  8. SolomonZelman
    • one year ago
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    \(\large\color{black}{ \displaystyle \frac{-20\color{red}{\pm}\sqrt{-50}}{60} }\) It doesn't have that ± sign, right?

  9. Destinyyyy
    • one year ago
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    Nope just plus

  10. SolomonZelman
    • one year ago
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    oh. ok

  11. SolomonZelman
    • one year ago
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    \(\large\color{black}{ \displaystyle \frac{-20+\sqrt{-50}}{60} }\) \(\large\color{black}{ \displaystyle \frac{-20}{60}+\frac{\sqrt{-50}}{60} }\)

  12. SolomonZelman
    • one year ago
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    so, so far will just say: \(\large\color{black}{ \displaystyle -\frac{1}{3}+\frac{\sqrt{-50}}{60} }\) and now will deal with the second part with the square root.

  13. SolomonZelman
    • one year ago
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    \(\large\color{black}{ \displaystyle -\frac{1}{3}+\frac{\sqrt{(-1)\cdot 25\cdot2}}{60} }\) can you simplfiy that?

  14. Destinyyyy
    • one year ago
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    5i square root 2 / 12

  15. SolomonZelman
    • one year ago
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    when you take the 25 out of the square root it becomes 5, because: \(\large\color{black}{ \displaystyle -\frac{1}{3}+\frac{\sqrt{(-1)\cdot 25\cdot2}}{60} }\) \(\large\color{black}{ \displaystyle -\frac{1}{3}+\frac{\sqrt{(-1)}\cdot\sqrt{ 25}\cdot\sqrt{ 2}}{60} }\) \(\large\color{black}{ \displaystyle -\frac{1}{3}+\frac{i\cdot\sqrt{ 5^2}\cdot\sqrt{ 2}}{60} }\) \(\large\color{black}{ \displaystyle -\frac{1}{3}+\frac{5i\sqrt{ 2}}{60} }\)

  16. SolomonZelman
    • one year ago
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    and then divide by 5. Am I making sense?

  17. Destinyyyy
    • one year ago
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    Yeah.. So i square root 2 over 12

  18. SolomonZelman
    • one year ago
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    yes, so altogether: \(\large\color{black}{ \displaystyle -\frac{1}{3}+\frac{i\sqrt{ 2}}{12} }\)

  19. SolomonZelman
    • one year ago
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    and if you want it in a+bi form, then \(\large\color{black}{ \displaystyle -\frac{1}{3}+\frac{\sqrt{ 2}}{12}i }\)

  20. SolomonZelman
    • one year ago
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    which is same..........................................

  21. Destinyyyy
    • one year ago
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    Yup.. Thank you.

  22. SolomonZelman
    • one year ago
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    yw

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