4 arccos{x-pi}=2 arccos{x}

Thank you,

Jason

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- November 11th 2009, 07:28 AMJasonVExact Solution of the Equation
4 arccos{x-pi}=2 arccos{x}

Thank you,

Jason - November 11th 2009, 08:20 AMstapel
I'd start by dividing through by 2. Then take the cosine of either side, and apply the double-angle identity for cosines to the left-hand side. (Wink)