18/12/17 04:45:32.12 GOYrgwsC.net
minimize (2*b+4rα) where (θ-sinθ)/2+r^2(α-sinα)/2+(1-b)sinθ/2=pi/8 ,0<b<1,0<θ<pi/2
URLﾘﾝｸ(www.wolframalpha.com)(2*b%2B4r%CE%B1)++where+(%CE%B8-sin%CE%B8)%2F2%2Br%5E2(%CE%B1-sin%CE%B1)%2F2%2B(1-b)sin%CE%B8%2F2%3Dpi%2F8+,0%3Cb%3C1,0%3C%CE%B8%3Cpi%2F2
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