Solve for ξ
\xi =\frac{490}{\pi }\approx 155.97184423
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2\pi \xi =980
The equation is in standard form.
\frac{2\pi \xi }{2\pi }=\frac{980}{2\pi }
Divide both sides by 2\pi .
\xi =\frac{980}{2\pi }
Dividing by 2\pi undoes the multiplication by 2\pi .
\xi =\frac{490}{\pi }
Divide 980 by 2\pi .
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