Complex Numbers

Circum-centre of $$\triangle ABC$$ with vertices $$A(Z_1), B(Z_2)$$ and $$C(z_3)$$ is $$S(z_0)$$.
The altitude from vertex $$A$$ to side $$BC$$ meets the circumcircle at $$E(z_4)$$.
Find the value of 
Find the value of 
$$Re\dfrac{(1 + i)^2}{3 - i} =$$
The point of intersection of the curves $$arg(z-3i)=\dfrac {3 \pi}{4}$$ and $$arg(2z+1-2i)=\dfrac {\pi}{4}$$, (where $$i=\sqrt {-1}$$) is