计算.如果x=2/t,y=3t^2-1 求出dy/dx,在t的形式里,在点(2,2)上
计算.如果x=2/t,y=3t^2-1 求出dy/dx,在t的形式里,在点(2,2)上
x=2sin(t),y=cos(t+pie),求dy/dx,和d^2y/dx^2,在点(0,-1)
设x=t+arctan t+1,y=t的立方+6t-2,求dy/dx
计算曲线∫(x+y)dx+(y-x)dy.L是曲线x=2t²+t+1,y=t²+1上从点(1,1)到
y= ∫[0,x](t-1)^3(t-2)dt,dy/dx(x=0)
y=∫(x 1)sin(t∧2)dt,求dy/dx
y=∫(1 -x)sin(t∧2)dt,求dy/dx
x=t^2+t y=ln(1+t) 求dy/dx
x=2(cot t),y=2(sin²t),用t表示dy/dx
设x=3e^-t,y=2e^t,则dy/dx等于多少?
x=2t+cost y=t+e^t 求dy/dx
F(t)=∫上标t下标1dy∫上标t下标y f(x)dx,且f(x)为连续函数则F'(2)=?