19/04/29 17:16:06.98 3qGFFixv.net
>>638 続き
S(p) = ∫[α,β] (px +3 - e^x)dx
= [ (p/2)xx +3x - e^x](α,β)
= (p/2)(β^2 - α^2) + 3(β-α) - e^β + e^α,
-α(p_max) = β(p_max) = log(3+2√2) = 2 log(1+√2),
p_max = (√2)/log(1+√2) = 1.6045563234489544149289
S(p_max) = 12log(1+√2) - 4√2 = 4.919628794742136107584557