Signs in the complex number: (3 + 5i)/(6i)  TOPIC_SOLVED

Complex numbers, rational functions, logarithms, sequences and series, matrix operations, etc.

Signs in the complex number: (3 + 5i)/(6i)  TOPIC_SOLVED

Postby honest_denverco09 on Wed Apr 15, 2009 2:48 am

I am rewriting this quotient into the form (a + bi), but i am stuck in the signs of the imaginary and the real number parts.

I have : (3 + 5i)/(6i)
I did multiply this fraction by (6i) for both of Numerator and Denominator. As a result, i had ( (-1/2)i + 5/6 ).
But computer's answer is opposite to my answer 's signs. He got ( (1/2)i - 5/6 ).

I would like to ask where are my mistakes ?
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Re: Signs in the complex number

Postby Martingale on Wed Apr 15, 2009 2:55 am

honest_denverco09 wrote:I am rewriting this quotient into the form (a + bi), but i am stuck in the signs of the imaginary and the real number parts.

I have : (3 + 5i)/(6i)
I did multiply this fraction by (6i) for both of Numerator and Denominator. As a result, i had ( (-1/2)i + 5/6 ).
But computer's answer is opposite to my answer 's signs. He got ( (1/2)i - 5/6 ).

I would like to ask where are my mistakes ?


I get what you get




though I would have just multiplied by
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Re: Signs in the complex number: (3 + 5i)/(6i)

Postby honest_denverco09 on Thu Apr 16, 2009 12:03 am

Thanks!
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