設(shè)函數(shù)f(x)連續(xù),F(xiàn)(x)=f(t)dt,試證:若f(x)是偶函數(shù),則F(x)是奇函數(shù).
設(shè)函數(shù)f(x)連續(xù),F(xiàn)(x)=f(t)dt,試證:若f(x)是奇函數(shù),則F(x)是偶函數(shù).
設(shè)f(x)=dt,求f(x)+.