SOLUTION: Draw the angle in quadrant II whose terminal side is on 1/2x + y = 0.

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Question 212322This question is from textbook Advanced Mathematics
: Draw the angle in quadrant II whose terminal side is on 1/2x + y = 0. This question is from textbook Advanced Mathematics

Found 2 solutions by HyperBrain, ikleyn:
Answer by HyperBrain(694) About Me  (Show Source):
You can put this solution on YOUR website!
The line is:
x/2 + y=0
2x+y=0
y=-2x
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This line is passing through the origin and quadrants II and IV.
Since the angle has a terminal side at quad. II,
If a is the angle, then tan a=-2
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Getting the arc tan,
tan a=-2
a=arctan -2=116.565 degrees

Answer by ikleyn(53937) About Me  (Show Source):
You can put this solution on YOUR website!
.
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".