10t+3t^2=200
解方程t(t-2)-3t =0
3t²+10t=200 ,怎么算,急
上海这边sus304(1.2T 2T 3T 4T 6T 10T)和sus202(1.2T 1.5T)的不锈钢板价格在多少
数学:解方程10=2t+(5-0.5根3)t²/2,t≈
do t=t/10; while(t);
(1-t)^3=1-3t+3t^2-t^3?如何化简得
参数方程x=t+1/t-1 y=2t/t^3-1
h(t)=5t^3+30t^2+45t+4
t=0:pi/100:10*pi; x=2*(cos(t)+t*sin(t)); y=2*(sin(t)-t*cos(t
一个MATLAB题 画出Y(T)=-3T^2+5 T>=0;3T^2+5 T
2t+1/2×0.01×t²=3t经过哪几步化为0.01t²-2t=0?
参考身高: 2T 3T 4T 5T 6T 8T是什么意思