The area of a room is "5" and the length is "1+2i". What is the width of the room?

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The area of a room is "5" and the length is "1+2i". What is the width of the room?

1-2i

(5-2i)/-5

1+2i

(5+2i)/-5

2007-12-16 06:01:22 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics

w ( 1 + 2 i) = 5
w = 5 / ( 1 + 2 i )
w = 5 ( 1 - 2 i ) / (5)
w = 1 - 2 i

2007-12-20 03:16:59 · answer #1 · answered by Como 7 · 1⤊ 0⤋

5 / 1+2i
as area = length times width
5 as area = 1+2i * width
hence, 5 / 1+21 = width

2007-12-16 14:05:59 · answer #2 · answered by korean_freak_ruii 3 · 0⤊ 0⤋

width is 1-2i

2007-12-16 14:07:17 · answer #3 · answered by Nur S 4 · 0⤊ 0⤋

1-2i

2007-12-16 14:07:27 · answer #4 · answered by ash 2 · 0⤊ 0⤋