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Perform the indicated operation. Write the result in the form a + bi.

0 votes
(8-4i)/(5+7i)
asked Jun 20, 2013 in ALGEBRA 2 by skylar Apprentice

1 Answer

0 votes

Given that (8 - 4i) / (5 + 7i)

                  image      [ Multiply by (5 - 7i) on numerator and denominator ]

                  image

                  image  [ Since i^2 = -1 ]

                 image

                 image

                 image

Therefore this is in the form a + bi where a = 12/74 and b = -76/74.

answered Jun 20, 2013 by joly Scholar

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