Question 212322
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Draw the angle in quadrant II whose terminal side is on 1/2x + y = 0.
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The answer "tan(a) = -2, a = arctan(-2) = 116.565 degrees" in the post by @HyoerBrain is FATALLY wrong.


The correct answer is "tan(a) = -1/2, a = arctan(-1/2) + 180 degrees = -26.57 + 180 degrees = 153.43 degrees".