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OpenStudy (anonymous):
The sine of a 30 degree angle is equal to the cosine of a 60 degree angle. true or false?
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OpenStudy (zzr0ck3r):
\(\sin(\frac{\pi}{2}+\theta)=\cos(\theta)\)
OpenStudy (trisaba):
true
OpenStudy (anonymous):
thank you!!
OpenStudy (trisaba):
no problem
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