What's the complex conjugate of 2i?
1 Answer
Jul 12, 2016
-2i
Explanation:
Given a complex number z = x ± yi then the
#color(blue)"complex conjugate"# is
#color(red)(|bar(ul(color(white)(a/a)color(black)(barz=x∓yi)color(white)(a/a)|)))# Note that the real part is unchanged, while the
#color(blue)"sign"# of the imaginary part is reversed.Thus the complex conjugate of 2i or z = 0 + 2i is 0 - 2i = - 2i
