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OpenStudy (loser66):
\[if~~ sin(2\theta) = 0.5798, ~~then \theta = 17.71~~or~~\theta = 90- 17.71 = 72.29\] I don't understand. Please, explain me
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OpenStudy (loser66):
@e.mccormick
OpenStudy (loser66):
the first value, I am ok, but how they get the second one?
OpenStudy (e.mccormick):
You mean why there are two answers?
OpenStudy (loser66):
yes
OpenStudy (loser66):
the interval is [0,90]
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OpenStudy (e.mccormick):
Hmm.... yah, th 90- seems odd. I thought that would be 180- because that has the same sine value.
OpenStudy (e.mccormick):
AH! It is for the 2 posible values of \(2\theta\). |dw:1379550380553:dw|
OpenStudy (e.mccormick):
|dw:1379550427981:dw|
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