如何用风险矩阵法进行风险识别,实训案例
发布网友
发布时间：2022-05-10 18:28
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热心网友
时间：2023-07-26 08:42
=lim(x->0) {(15/8)*[sin(13x/15)-sin(7x/15)-sin(23x/15)+sin(17x/15)]/x^2+(1/8)*[13cos(13x/15)-7cos(7x/5)-23cos(23x/5)+17cos(17x/15)]/x}-(π/240)*(169-49-529+289)
=π/2+(1/8)*lim(x->0) [15sin(13x/15)-15sin(7x/15)-15sin(23x/15)+15sin(17x/15)+13xcos(13x/15)-7xcos(7x/15)-23xcos(23x/15)+17xcos(17x/15)]/x^2
=π/2+(1/8)*lim(x->0) [13cos(13x/15)-7cos(7x/15)-23cos(23x/15)+17cos(17x/15)-(169/30)xsin(13x/15)+(49/30)xsin(7x/15)+(529/30)xsin(23x/15)-(289/30)xsin(17x/15)]/x
=π/2+(1/8)*lim(x->0) [-(169/10)sin(13x/15)+(49/10)sin(7x/5)+(529/10)sin(13x/15)-(289/10)sin(17x/15)]
=π/2
