SOLUTION: 5/1+i write expression as complex number in standard form

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Question 118255: 5/1+i write expression as complex number in standard form
Found 2 solutions by stanbon, ankor@dixie-net.com:
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
5/(1+i) write expression as complex number in standard form
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Multiply numerator and denominator by 1-i to get:
5(1-i)/[(1+i)(1-i)]
= [5-5i]/(1-i^2)
= [5-5i]/2
= (5/2)-(5/2)i
====================
Cheers,
Stan H.

Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
5/1+i write expression as complex number in standard form
:
Multiply by the conjugate of the denominator over itself
5%2F%28%281%2Bi%29%29 * %28%281-i%29%29%2F%28%281-i%29%29 = %285%281-i%29%29%2F%28%281+-+i%5E2%29%29 = %285%281-i%29%29%2F%28%281+-+%28-1%29%29%29 = %285%281-i%29%29%2F%28%281+%2B+1%29%29 = %28%285-5i%29%29%2F2
or
5%2F2 - 5%2F2i