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OpenStudy (anonymous):
I've been given this question: given 210 degrees, find the reference angle for the remaining quadrants I,II, III, IV.
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OpenStudy (dumbcow):
|dw:1383195304412:dw|
OpenStudy (anonymous):
why no formula in quadrant IV?
OpenStudy (dumbcow):
haha i couldnt think of one...but notice once you have the reference angle of 30 you can find all the others by adding/subtracting from center line
OpenStudy (anonymous):
I see..so you use the reference angle to extend the lines through the quadrants and then use the formulas..
OpenStudy (dumbcow):
yeah kinda, ignore the formulas....let me change diagram
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OpenStudy (dumbcow):
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