College Discussion - View Single Post - Complex number modulus and the product of conjugates?

kyoko · 04-21-2008, 10:46 PM

Hi,

I'm using barron's 2008 math 2 book to prepare for my iic. The typos in the "graphing complex numbers" section is absolutely killing me.

Questions:

Is the mod of a complex number the distance from the origin on the complex number plane? sqrt(a^2+b^2)

Are the graphs of conjugates the reflections across the x-axis (the book said y-axis :S )

Is the product of conjugates the square of the modulus? (a^2+b^2)

thanks!

04-21-2008, 10:46 PM	#1
kyoko Junior Member Join Date: Apr 2008 Threads: 11 Posts: 57	Complex number modulus and the product of conjugates? Hi, I'm using barron's 2008 math 2 book to prepare for my iic. The typos in the "graphing complex numbers" section is absolutely killing me. Questions: Is the mod of a complex number the distance from the origin on the complex number plane? sqrt(a^2+b^2) Are the graphs of conjugates the reflections across the x-axis (the book said y-axis :S ) Is the product of conjugates the square of the modulus? (a^2+b^2) thanks!