Wednesday, 7 January 2015

complex analysis - Find the real and imaginary part of the following

I'm having trouble finding the real and imaginary part of z/(z+1) given that z=x+iy. I tried substituting that in but its seems to get really complicated and I'm not so sure how to reduce it down. Can anyone give me some advice?

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real analysis - How to find limhrightarrow0fracsin(ha)h

How to find lim without lhopital rule? I know when I use lhopital I easy get $$ \lim_{h\rightarrow 0}...