# Exercici 03-2-10

'z=z:a+b*%i;

## a)

eq1: abs(3*z+4)=1;

expand(%);

## b)

eq2: ((abs(z-2*%i))/(abs(z+2*%i)))=4;

expand(%);

## c)

eq3: abs(3*z+1)-abs(3*z)>=0;

expand(%);

## d)

eq3:realpart(3/z)+imagpart(4/conjugate(z))<2;