[分析] 初微(34)

[PttFund (批踢踢基金只進不出)]

If g(u) is continuous on [0,1], then show that

       π/2                      π/2
        ∫  g(sin(2u)) cosu du =  ∫  g((cosv)^2) cosv dv.
         0                        0

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