t="60,105,102,114,97,109,101,32,104,101,105,103,104,116,61,4
-(t²-t)+1为什么等于-t²+t-1/4+1+1/4=-(t²-t)+1
已知{x=3t^4+6t,y=t^3-3t} 求导数
h(t)=5t^3+30t^2+45t+4
解方程:t²+(2-t)²=t²+4t+8-2×(16t+12t²+4t的三次方
(t+3t²-3)-(-t+4t²),其中t=-1,怎么化简,怎么求值?
已知y'''(t)+4y''(t)+6y'(t)+2y(t)=f''(t)-f(t)用MATLAB如何求频率响应H(jw
长度M=(身高T-105)*0.618/3.14 (厘米).
求摆动数列的通项公式数列:a1=t,a2=2t,a3=3t,a4=2t,a5=3t,a6=4t,a7=3t,a8=4t,
摆动数列的通项公式数列:a1=t,a2=2t,a3=3t,a4=2t,a5=3t,a6=4t,a7=3t,a8=4t,a
求导f(x)=(t²+1)² / 4t
解方程:4:5t=2:(3t-1)
3t²-4t-5=0