complex # + equations

[kpx001]

7-i
----
7+i


this is what i have so far



(7-i) (7-i) 49-7i-7i+1 50-14i
---- ---- = ------------ = -------
(7+i) (7-i) 49+1_________ 50
dont mind the _____


dunno :x

solution is 24/25 - 7/25(i)

 

[Mrspi]

7-i
----
7+i


this is what i have so far



(7-i) (7-i) 49-7i-7i+1 50-14i
---- ---- = ------------ = -------
(7+i) (7-i) 49+1_________ 50
dont mind the _____


dunno :x

solution is 24/25 - 7/25(i)

You approached this problem correctly. But, you made a small mistake in multiplying (7 - i)(7 - i).

It should be 49 - 7i - 7i + i<SUP>2</SUP>, or
49 - 14i - 1, or
48 - 14i

Put this over your (correct) denominator of 50:
48/50 - (14/50)i
reduce the fractions, and you should end up with the specified answer.

 

[TchrQbic]

7-i
----
7+i


this is what i have so far



(7-i) (7-i) 49-7i-7i+1 50-14i
---- ---- = ------------ = -------
(7+i) (7-i) 49+1_________ 50
dont mind the _____


dunno :x

Reduce your fraction by dividing numerator and denominator by 2.

solution is 24/25 - 7/25(i)

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