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OpenStudy (anonymous):
Precalc help please? Write the polar equation in rectangular form.
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OpenStudy (anonymous):
\[r^2\sin2\theta=8\]
OpenStudy (ranga):
Expand sin(2theta). Replace rcos(theta) with x and rsin(theta) with y.
OpenStudy (anonymous):
I don't know what you mean by expand?
OpenStudy (ranga):
There is a double angle formula for sine. sin(2A) = 2sin(A)cos(A)
OpenStudy (anonymous):
Oh of course! Thank you!
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