You can put this solution on YOUR website! With my calculator, I get degrees
Because , I can eliminate
the 2nd and 4th quadrants where the tan is negative.
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In the first quadrant, I just have degrees
In the 3rd quadrant, I have degrees
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Note that in the 1st quadrant, the signs are +/+
and in the 2nd quadrant, the signs are -/-
Both give me a sign of +