SOLUTION: What is the multiplicative inverse of 5-9i?

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Question 537401: What is the multiplicative inverse of 5-9i?
Found 2 solutions by stanbon, Alan3354:
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
What is the multiplicative inverse of 5-9i?
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ans: 1/(5-9i)
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Multiply numerator and denominator by 5+9i to get:
= (5+9i)/(5^2+9^2) = (5/706) + (9/706)i
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Cheers,
Stan H.

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
What is the multiplicative inverse of 5-9i?
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= %285%2B9i%29%2F%285%5E2+%2B+9%5E2%29
= %285%2B9i%29%2F106