这些都有公式的:
I=∫[h(x),g(x)]f(t)dt
=∫[h(x),0]f(t)dt+∫[0,g(x)]f(t)dt
=-∫[0,h(x)]f(t)dt+∫[0,g(x)]f(t)dt
I’=f(g(x))g'(x)-f(h(x))h'(x)
这些都有公式的:
I=∫[h(x),g(x)]f(t)dt
=∫[h(x),0]f(t)dt+∫[0,g(x)]f(t)dt
=-∫[0,h(x)]f(t)dt+∫[0,g(x)]f(t)dt
I’=f(g(x))g'(x)-f(h(x))h'(x)