Question #35062

1 Answer
Apr 17, 2017

For z = x + i y, we have Im(z) = y,....., not iy. The imaginary part of a complex number is not imaginary.

So: -3.13i xx -1.06i =-( -3.13 xx -1.06 )

But: Im(-3.13i) xx Im(-1.06i) = -3.13 xx -1.06

And generally:

Im(x+iy) xx Im(u + i v) = yv