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  1. J

    Solving trigonometric functions Multiple choice HSC

    That is incorrect because when you said "You were meant to do 180º + (-63)º, and 360º + (-63)º for that." indicates that you think the forth quadrant is 360+theta. You were meant to write 360--63, which therefore means its outside the 0-360 range, thus making it 2 solutions. Though a question...
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