设x=1-t^2,y=t-t^3

设x=t^2-1,y=t^4-2t^3,求y设x=t^2-1,y=t^4-2t^3,求y设x=t^2-1,y=t^4-2t^3,求y解y'=dy/dx=(t^4-2t^3)'/(t^2-1)'=(4t^3-6t^2)/2t=2t^2-3t

微分方程矩阵x'(t)=x(t)+y(t)+2ty'(t)=x(t)+y(t)-2t微分方程矩阵x'(t)=x(t)+y(t)+2ty'(t)=x(t)+y(t)-2t微分方程矩阵x'(t)=x(t)+y(t)+2ty'(t)=x(t)+y

设x=t+arctant+1,y=t的立方+6t－2,求dy／dx设x=t+arctant+1,y=t的立方+6t－2,求dy／dx设x=t+arctant+1,y=t的立方+6t－2,求dy／dxdx/dt=1+1/(t²+1)

设奇函数f(x)的定义域为(t,t^2-3t-8),值域为(2t,t^2+3t+6),则函数y=f(x+2011)+1的值域为多少A.(-2,2)B.(-4,4)C.(-3,5)D.(-5,5)求y=f(x+1)+1的==手误设奇函数f(x

设奇函数f(x)的定义域为(t.t^2-3t-8),值域为(2t,t^2+3t+6),则函数y=f(x+1)+1的值域为A.(-2,2)B.(-4,4)C.(-3,5)D.(-5,5)设奇函数f(x)的定义域为(t.t^2-3t-8),值域

设奇函数f(x)的定义域为（tt平方-3t-8),值域为（2t,t平方+2t+4),则函数y=f(x+1）+1的值域为?设奇函数f(x)的定义域为（tt平方-3t-8),值域为（2t,t平方+2t+4),则函数y=f(x+1）+1的值域为?

x=t-ln(1+t)y=t^3+t^2求dy/dxx=t-ln(1+t)y=t^3+t^2求dy/dxx=t-ln(1+t)y=t^3+t^2求dy/dxdy/dx=(dy/dt)/(dx/dt)=(3t^2+2t)/[1-1/(1+t)

x=2t-t*ty=3t-t*3的拐点是什么?x=2t-t*ty=3t-t*3的拐点是什么?x=2t-t*ty=3t-t*3的拐点是什么?dx=2-2tdy=3-3t^2y撇=dy/dx=(3-3t^2)/(2-2t)y撇撇=-6t(2-2

设x=(√(t+1)-√t)/(√(t+1)+√t),y=(√(t+1)+√t)/(√(t+1)-√t),t取何值时,代数式20x^2+41xy+20y^2的值为2001.设x=(√(t+1)-√t)/(√(t+1)+√t),y=(√(t+

叶形线：x=2*t-t*t,y=2*t*t-t*t*t图形怎么划?叶形线：x=2*t-t*t,y=2*t*t-t*t*t图形怎么划?叶形线：x=2*t-t*t,y=2*t*t-t*t*t图形怎么划?

设x=2t^2,y=3t^3,则dy/dx=设x=2t^2,y=3t^3,则dy/dx=设x=2t^2,y=3t^3,则dy/dx=x=2t^2,y=3t^3则t=(x/2)^(1/2)=(y/3)(1/3),则3(x/2)^(3/2)=y

设x=3e^-t,y=2e^t,则dy/dx等于多少?设x=3e^-t,y=2e^t,则dy/dx等于多少?设x=3e^-t,y=2e^t,则dy/dx等于多少?dy/dx=(dy/dt)/(dx/dt)=(2e^t)′/(3e^-t)′=

设x=3e^-t,y=2e^t,则dy/dx等于多少?设x=3e^-t,y=2e^t,则dy/dx等于多少?设x=3e^-t,y=2e^t,则dy/dx等于多少?∵x=3e^(-t),y=2e^t∴dx=-3e^(-t)dt,dy=2e^t

设x=4ty=t^2+1求dy/dx设x=4ty=t^2+1求dy/dx设x=4ty=t^2+1求dy/dxdx=4dtdy=2t*dtdy/dx=2t/4=t/2=x/8

设函数y=y(x)由x=2t+|t|,y=5t^2+4t|t|,求dy设函数y=y(x)由x=2t+|t|,y=5t^2+4t|t|,求dy设函数y=y(x)由x=2t+|t|,y=5t^2+4t|t|,求dy当t>=0时,x=2t+|t|

设函数y=x平方-2x+2,x∈[t,t+1]的最小值为g(t),求g(t)的解析式设函数y=x平方-2x+2,x∈[t,t+1]的最小值为g(t),求g(t)的解析式设函数y=x平方-2x+2,x∈[t,t+1]的最小值为g(t),求g(

y=log3(x)+logx(3)-1的值域设t=logx,则log3=1/t,t≠0，y=t+1/t-1,怎么y是这样的y=log3(x)+logx(3)-1的值域设t=logx,则log3=1/t,t≠0，y=t+1/t-1,怎么y是这

Y(t)=3t^2-3tX(t)=4t^2-6t^3+5t求Y(x)=?Y(t)=3t^2-3tX(t)=4t^2-6t^3+5t求Y(x)=?Y(t)=3t^2-3tX(t)=4t^2-6t^3+5t求Y(x)=?Y(t)=3t(t-1)

x=2t+1/t,y=t-1/2t参数方程,x=2t+1/t,y=t-1/2t参数方程,x=2t+1/t,y=t-1/2t参数方程,跟正常解一样,解着解着就消了

设t∈R,求函数f(x)=(x-2)+3在区间[t,t+1]的最大值g(t)和最小值h(t)设t∈R,求函数f(x)=(x-2)+3在区间[t,t+1]的最大值g(t)和最小值h(t)设t∈R,求函数f(x)=(x-2)+3在区间[t,t+