I don't know how to set this up or figure it out?
2007-01-12 04:08:56 · 7 answers · asked by Matthew B 2 in Science & Mathematics ➔ Mathematics
absolute value = distance from the origin.
|3+4i| = √(3²+4²)
|3+4i| = 5
2007-01-12 04:13:18 · answer #1 · answered by bequalming 5 · 1⤊ 0⤋
I believe the answer is, whenever you do
| a + bi |
The answer is
sqrt(a^2 + b^2)
This case is no different.
|3 + 4i| = sqrt(3^2 + 4^2) = sqrt(25) = 5
2007-01-12 12:13:43 · answer #2 · answered by Puggy 7 · 0⤊ 0⤋
[z=3 +4i]
[ ] = the absolute value
2007-01-12 12:13:35 · answer #3 · answered by Hermione G 5 · 0⤊ 0⤋
The absolute value of a complex number x + yi is defined as x*x + y*y
2007-01-12 12:15:00 · answer #4 · answered by M-M 2 · 0⤊ 0⤋
The absolute value is 5. In general the absolute
value of a + bi is â(a+bi)(a-bi) = â(a²+b²)
So the answer to your problem is â(3²+4² = 5.
2007-01-12 12:35:22 · answer #5 · answered by steiner1745 7 · 0⤊ 0⤋
abs value
=sqrt[3^2+4^2]
=5
2007-01-12 12:31:29 · answer #6 · answered by openpsychy 6 · 0⤊ 0⤋
Dave's short course should do you fine!
http://www.clarku.edu/~djoyce/complex/mult.html
2007-01-12 12:16:30 · answer #7 · answered by christopherthomasandrews 2 · 0⤊ 0⤋