anonymous
  • anonymous
Simplify the given expression:
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
schrodinger
  • schrodinger
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anonymous
  • anonymous
1 Attachment
anonymous
  • anonymous
i7/1+9i
anonymous
  • anonymous
thats not an answer choice

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More answers

anonymous
  • anonymous
What are the choices?
anonymous
  • anonymous
7+7i/2 63+7i/82 -7+7i/2 -63+7i/82
Hero
  • Hero
\[ \sqrt{-49} = \sqrt{49 \dot\ -1} = \sqrt{49} \sqrt{-1} = 7i \\(3 + 4i) - (2 - 5i) = (3 - 2) + (4i + 5i) = 1 + 9i \]
Hero
  • Hero
I have to agree with @maym0Re97
anonymous
  • anonymous
Lol that's what I got, but it's not an answer choice
anonymous
  • anonymous
i got that answer as well, but it isnt a choice
Hero
  • Hero
There's probably an equivalent choice
Hero
  • Hero
Multiply top and bottom by 1 - 9i and see what happens
anonymous
  • anonymous
would it be 63+7i/82?
anonymous
  • anonymous
your job is to rewrite in standard form as \(a+bi\) which means do what @hero said
anonymous
  • anonymous
\[\frac{7i}{1+9i}\times \frac{1-9i}{1-9i}\] the denominator is \(1^2+9^2=82\) all the work is in the numerator
anonymous
  • anonymous
yes you have it
anonymous
  • anonymous
thank you(:

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