Here is the circuit:

The task is to find current in every branch, reactive, active and full power as well as the power coefficient. And construct the current and voltage vector.

The values are:

I've already done a similar task, but without the Z1.

In such case I first got the power and phase shift angles, then get the active and reactive conduction of each branch. Then the full conduction of each branch. And from that I get the power in each branch. From that it's easy to get the powers and coefficient. Something like this:

But in this task I'm a bit confused due to the Z1 and the values of X2 and R3 (which are zeros) - I somehow end up at a formula where something has to be divided by 0. And also in that task the U value was given.

Thanks in advance for any tips.