见图

来源:学生作业学帮网 编辑:学帮网 时间:2024/06/16 17:21:36

见图

原式=∫[0,π/2]sin(sinx)d(sinx)
=[-cos(sinx)]|[0,π/2]
=cos(sin0)-cos[sin(π/2)]
=cos0-cos1
=1-cos1