来源:学生作业帮 编辑:大师作文网作业帮 分类:数学作业 时间:2024/11/10 07:14:14
求微分,要步骤,谢谢
这些都是很基本的积分题.
1)∫arctanxdx = x*arctanx - ∫[x/(1+x^2)]dx = x*arctanx - (1/2)ln(1+x^2) + C.
2)∫{1/[(x^2)-9x+18]}dx = (1/3)∫[1/(x-6) - 1/(x-3)]dx = (1/3)ln|(x-6)/(x-3)| + C;
3)∫[(sinx)^2]cosxdx = ∫[(sinx)^2]dsinx = (1/3)[(sinx)^3] + C.