4(t-3)=9(2t-3)
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4(t-3)=9(2t-3)4(t-3)=9(2t-3)4(t-3)=9(2t-3)
4(t-3)=9(2t-3)
4(t-3)=9(2t-3)
4(t-3)=9(2t-3)
(t-3)(t-3)+4t(t-3)=0
t(t的二次方-3)=2 t等于多少?t=-1,t=2,
4(t-3)=9(2t-3)
(2t+3)(2t-)-(4t+1)(t-9)
(t+3t²-3)-(-t+4t²)
(t*t)-4t+3=0求t
求(3t*t+3)/(3t*t-4t)的值域(t大于0)
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~
因式分解 (8t立方-9+15t-10t平方)除(4t-3)
解方程:t的四次方-9t的平方-2t=-10(t-1)²+(t²-4)²+4t²+9=(t+1)²+(t-1)²4t²+9+(t+1)²+(t-1)²=)(t-1)²+(t²-4)²求以上三个方程的解,求具
通分问题(1)3t/4t-6,t+1/4t平方-9(2)3x/x平方-2x,2x+1/4-x平方,3/2x平方+4x(1)3t/4t-6,t+1/4t²-9(2)3t/4t-6,t+1/4t²-9
t(t-2)-3t=0
解方程t(t-2)-3t =0
∫1/(1+t+t^2+t^3)dt
(t+3t^2-3)-(-t+4t^2) 化简
(t+3t^2-3)-(-t+4t^2) 化简
参考身高: 2T 3T 4T 5T 6T 8T是什么意思
(t^5+t^4+t^3+t^2+t+1)(t-1) 用直式计算