y=4000*(4200-x^2)*•x/4500-2000[1-(4200-x^2/4500)] *x的计算过程。 过程，急急
答案:1 悬赏:30 手机版
解决时间 2021-03-27 07:59
- 提问者网友：末路
- 2021-03-26 19:57
y=4000*(4200-x^2)*•x/4500-2000[1-(4200-x^2/4500)] *x的计算过程。 过程，急急
最佳答案
- 五星知识达人网友：青灯有味
- 2021-03-26 21:28
y=4000*(4200-x^2)*•x/4500-2000[1-(4200-x^2/4500)] *x
=8x(4200-x²)/9-4x(4500-4200+x²)/9
=(33600x-8x³+1200x-4x³)/9
=(34800x-12x³)9
y =(11600x-4x³)/9追问错了追答y=4000*(4200-x^2)*•x/4500-2000[1-(4200-x^2/4500)] *x
=8x(4200-x²)/9-4x(4500-4200+x²)/9
=(33600x-8x³+1200x-4x³)/9
=(34800x-12x³)/9
y =(11600x-4x³)/3追问还是不一样
=8x(4200-x²)/9-4x(4500-4200+x²)/9
=(33600x-8x³+1200x-4x³)/9
=(34800x-12x³)9
y =(11600x-4x³)/9追问错了追答y=4000*(4200-x^2)*•x/4500-2000[1-(4200-x^2/4500)] *x
=8x(4200-x²)/9-4x(4500-4200+x²)/9
=(33600x-8x³+1200x-4x³)/9
=(34800x-12x³)/9
y =(11600x-4x³)/3追问还是不一样
我要举报
如以上问答信息为低俗、色情、不良、暴力、侵权、涉及违法等信息，可以点下面链接进行举报！
大家都在看
推荐资讯