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OpenStudy (anonymous):
2cos theta + 1 =0
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OpenStudy (anonymous):
what is your question?
OpenStudy (stamp):
\[2cos(x)+1=0\]
OpenStudy (stamp):
Means that \[2cos(x)=-1\] Can you solve for x?
OpenStudy (anonymous):
thank you
OpenStudy (anonymous):
what about tan square theta -3 =0
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