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OpenStudy (anonymous):
Explain the meaning of absolute value of a complex number. What is the absolute value of –2 + 3i?
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OpenStudy (anonymous):
The absolute value of a+bi is sqrt(a^2 + b^2)
OpenStudy (solomonzelman):
absolute value means, lets take a number line,|dw:1384371186558:dw|
OpenStudy (anonymous):
So the absolute-value of 3-4i is sqrt(3^2 + (-4)^2) = sqrt(9 + 16) = sqrt (25) = 5.
OpenStudy (solomonzelman):
For complex number like –2 + 3i it will be –2 + 3i positive or –2 + 3i negative. In toher words +2-3i or -2+3i
OpenStudy (anonymous):
so the first part?
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