SOLUTION: If z = 3 - 4i and w = 8 + 3i,write each expression in the standard form a+bi.
A. w - w bar
B. (z - w) bar
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Question 1207476: If z = 3 - 4i and w = 8 + 3i,write each expression in the standard form a+bi.
A. w - w bar
B. (z - w) bar
Found 2 solutions by ikleyn, math_tutor2020:
Answer by ikleyn(52786) (Show Source): You can put this solution on YOUR website!
.
Simple exercise, which requires the introductory knowledge on complex numbers, ONLY.
The level of complexity is the same as to add / (to subtract) two integer numbers.
-----------------
On complex numbers, see introductory lessons
- Complex numbers and arithmetical operations on them
- Complex plane
- Addition and subtraction of complex numbers in complex plane
- Multiplication and division of complex numbers in complex plane
in this site.
Answer by math_tutor2020(3817) (Show Source): You can put this solution on YOUR website!
I'll do the first question to get you started.
w = 8+3i
wBar = complex conjugate of w
wBar = horizontal line over "8+3i" = 8-3i
w - wBar = (8+3i) - (8-3i)
w - wBar = 8+3i - 8+3i
w - wBar = 6i
Notice that in general (a+bi)-(a-bi) = 2bi
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