作业帮(1-t)^3=1-3t+3t^2-t^3?如何化简得
来源：学生作业帮助网 编辑：作业帮 时间：2024/11/17 07:52:20
(1-t)^3=1-3t+3t^2-t^3?如何化简得
(1-t)^3=1-3t+3t^2-t^3?如何化简得
(1-t)^3=1-3t+3t^2-t^3?如何化简得
(1-t)^3
=(1-t)(1-t)(1-t)
=(1-2t+t²)(1-t)
=1-t-2t+2t²+t²-tO
=1-3t+3t²-t³
如还不明白,请继续追问.
手机提问的朋友在客户端右上角评价点【满意】即可.
（1-t)^3
=(1-t)^2×(1-t)
=(1-2t+t^2)(1-t)
=1-t-2t+2t^2+t^2-t^3
=1-3t+3t^2-t^3
(1-t)^3=1-3t+3t^2-t^3
=0
(2t+3)(2t-)-(4t+1)(t-9)
已知f(t)=3t*t-2t-2/t+3/t*t,证明f(t)=f(1/t)
4t^-8t+5-3t^+6t-2 其中t=2/1
化简t+1/t-(t+2)²-1/t²×t+1/t+3
(t^5+t^4+t^3+t^2+t+1)(t-1) 用直式计算
3t^2+3t-1-t^3=0,
79.788456t - 1250t^2 - 8311.297508t^3 = 1
当t=1时,代数式t^3-2t[2t^2-3t(2t+2)]的值
3t^2-1=6t
3t+t-2t=?
画出下列信号的波形1）f(t)=tu(t); 2)f(t)=t[u(t)-u(t-2)]; 3)f(t)=(t-1)u(t-1); 4)f(t)=sint/t画出图形~
求解数学题∫(3t+1)/(t*t-t+1)
5t-3≤4t-1 7+2t>6+3t 3+t
5t-3≤4t-1 7+2t>6+3t 3+t
(1-t)^3=1-3t+3t^2-t^3?如何化简得
3t^2-1=(a^3-a-t^3+t)/(a-t)
求(1+t)*(27t+3)/((1+3t)^2)的最大值 t〉=0
f(t)=t²+3t-1 t=-3/2