Applying Thevenin's theorem to AC circuits

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mpar3
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Homework Statement
FIGURE 1 shows a 50 Ω load being fed from two voltage sources via
their associated reactances. Determine the current i flowing in the load by:

(a) applying Thévenin’s theorem
(b) applying the superposition theorem
Relevant Equations
Thevenin equivalents, polar & rectangular conversions
Circuit schematic labelled FIG. 1: two voltage sources v1 and v2 joined by j4 Ω and j6 Ω inductors and a 50 Ω resistor marked @ 0.7 p.f. lag, with current i downward. Equations: v1 = √2 × 415 cos(100πt) volts; v2 = √2 × 415 sin(100πt) volts.


Handwritten circuit analysis on lined paper: a series RL circuit with an inductor labelled Z1 = j6 and a second branch Z2 = j6 between terminals A and B, sources V1 and V2, followed by phasor and Thevenin calculations.
Handwritten calculation of a complex current as a fraction: 299.261 at 56.710 degrees over 68.315 at -43.580 degrees, equals 6.196 at 99.890 degrees.

So I've seen other threads on here with the same problem from a few years ago, and I'm just not getting the same answers. However, I followed along with a similar problem in the textbook and used all the same methods, so can't understand where I've gone wrong, or if I even am wrong. Also not sure if its ok that the current should be at an angle greater than 90 degrees