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OpenStudy (anonymous):
solve 2cos^2(w)-cos(w)-1=0 for all solutions
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OpenStudy (anonymous):
What does the w represent?
OpenStudy (anonymous):
theta
OpenStudy (anonymous):
Theta? Sorry I don't quite understand.
OpenStudy (anonymous):
Theta is just a variable for the angle
OpenStudy (anonymous):
2cos^2(x) = cos(2x)+1
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OpenStudy (anonymous):
Yeah, I never heard of it.
OpenStudy (anonymous):
cos(2x)+1-cos(x)-1=0
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