I have coursework to do and I really want a good mark. This question that i am doing is not giving me nice numbers at the end, so if anyone can tell me what they get to make sure I'm not doing it wrong.

Q1 Letandz = 3+5iw = 3e^[(3*pi)/4](w= 3 times e to the power of everything in square brackets)

Find:

1)z*w

2)z/w

3)z+w

thanks so much for any help :)