题目:设f(x)=C(2)[0,1],f(0)=f(1)=0,当x∈(0,1)时,|f"(x)|≤A.求证当0≤x≤1时, 设f(x)=C(2)[0,1],f(0)=f(1)=0,当x∈(0,1)时,|f"(x)|≤A.求证当0≤x≤1时, 喜欢 (0)