If Someone can solve it?

[awaisahmed1990]

Hello,

I am new here.

I have a complex number question.

The Value of |1/1+3i - 1/1-3i| is :

(A) 2/7
(B) 3/5
(C) -2/7
(D) -3/5

Whats the value? It would be great if someone tell me how to get the value.

Waiting for your replies.
Thanks in advance.

Regards,
Awais^

 

[Deleted member 4993]

Hello,

I am new here.

I have a complex number question.

The Value of |1/1+3i - 1/1-3i| is :

(A) 2/7
(B) 3/5
(C) -2/7
(D) -3/5

Whats the value? It would be great if someone tell me how to get the value.

Waiting for your replies.
Thanks in advance.

Regards,
Awais^

convert

1/(1 + 3i) - 1/(1 - 3i) to a form a + bi

so that you have

a + bi = 1/(1 + 3i) - 1/(1 - 3i)

Please share your work with us ...

If you are stuck at the beginning tell us and we'll start with the definitions.

You need to read the rules of this forum. Please read the post titled "Read before Posting" at the following URL:

http://www.freemathhelp.com/forum/th...Before-Posting

 

[pka]

Hello,

I am new here.

I have a complex number question.

The Value of |1/1+3i - 1/1-3i| is :

(A) 2/7
(B) 3/5
(C) -2/7
(D) -3/5

\(\displaystyle \dfrac{1}{{1 + 3i}} - \dfrac{1}{{1 - 3i}} = \dfrac{{ - 6i}}{{10}}\)

\(\displaystyle \left| {\dfrac{{ - 6i}}{{10}}} \right| = ?\)

 

[lookagain]

\(\displaystyle \dfrac{1}{{1 + 3i}} - \dfrac{1}{{1 - 3i}} = \dfrac{{ - 6i}}{{10}}\)

\(\displaystyle \left| {\dfrac{{ - 6i}}{{10}}} \right| = ?\)

Subhotosh Khan gave an appropriate reply so that the student could

have time to take an opportunity and share with what he knows.


The student asked "how to get the value."

In what you typed, you showed a partial result, but no "how."