- 745 名前：１３２人目の素数さん mailto:sage [2024/08/05(月) 18:57:55.42 ID:88Ub8uY1.net]
- >>699
S = ∫[0,π] y dx
= ∫[0,π] sin(x) dx
= [ -cos(x) ](x=0→π)
= 2,
2S・Y = ∫[0,π] yy dx
= ∫[0,π] (sin x)^2 dx
= (1/2)[ x − sin(x)･cos(x) ](x=0→π)
= π/2,
Y = π/4S = π/8,
G (π/2, π/8)
