求导:已知x=2sint-t^2,y=3cost+t^3,求dy/dx
来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/26 04:36:21
求导:已知x=2sint-t^2,y=3cost+t^3,求dy/dx求导:已知x=2sint-t^2,y=3cost+t^3,求dy/dx求导:已知x=2sint-t^2,y=3cost+t^3,求
求导:已知x=2sint-t^2,y=3cost+t^3,求dy/dx
求导:已知x=2sint-t^2,y=3cost+t^3,求dy/dx
求导:已知x=2sint-t^2,y=3cost+t^3,求dy/dx
dy/dt= -3sint+3t^2
dx/dt=2cost -2t
所以
dy/dx
=(dy/dt) /(dx/dt)
=( -3sint+3t^2) /(2cost -2t)
求导:已知x=2sint-t^2,y=3cost+t^3,求dy/dx
求x=e^t*cost,y=e^t*sint所确定的函数的二阶导数,求讲解x't=(e^t)(sint+cost)y't=(e^t)(cost-sint)x''t=(e^t)(sint+cost+cost-sint)=2(e^t)costy''t=(e^t)(cost-sint-sint+cost)=-(e^t)sintdy/dx=(cost-sint)/(sint+cost)d^2 y/d(x^2)=d(dy/dx)/dx=(y''x
求导数 x=3t²+2t+3 y=e^y*sint+t 求 dy/dx
设x=1+t^2、y=cost 求 dy/dx 和d^2y/dx^2 sint-tcost/4t^3 和 sint-tcost/4t^2 哪个对?设x=1+t^2、y=cost 求 dy/dx 和d^2y/dx^2sint-tcost/4t^3 和 sint-tcost/4t^2 哪个对?
怎么理解参数求导呢?例如这题:x=a(t-sint)和y=a(1-cost) 所确定的函数为y=y(x),则在t=π/2处的导数为
x=(e^t)sint y=(e^t)cost 求d^2y/dx^2
高数求导(dy/dx)习题设由下列方程确定y是x的函数,求dy/dx(1)cos(x^2 +y)=x求下列参数方程所确定的函数y=f(x)的导数dy/dx(1)x=(e^t)sint,y=(e^t)cost.(1)-[1+2xsin(x^2 +y)]/[sin(x^2 +y)](2)cost-sint/sint+cost
已知{x=sint^2 y=(2t+5)^2 求dy/dx已知{x=sint^2y=(2t+5)^2 求dy/dx
参数方程求导 x=a(t-sint) y=a(1-cost) 求dy/dx 各种不会 求解决
把曲线的参数方程化为一般方程:x=3sint,y=4sint,z=5cost (0小于等于t小于2pai)
高数!设z=e^(x-2y),而x=sint,y=t^3,求dz/dt
设z=e^(x-2y),而x=sint,y=t^3,求dz/dt
设z=x^2*y^3;,x=sint,y=e的t次方,求dz/dt
证明:f(x)=x*cos(x)不是周期函数证明:假设y=xcosx是周期函数,因为周期函数有f(x+T)=f(x)xcosx=(x+T)cos(x+T)=xcosx*cosT-xsinx*sinT+Tcosx*cosT-Tsinx*sinT所以cosT=1 T=kπ/2-xsinx*sinT+Tcosx*cosT-Tsinx*sinT=0-xsinx*sinT-Tsinx*si
已知x=exp(t)sint ,y=exp(t)cost,证明下列方程
已知 x=6(t-sint) ,y=6(1-cost)y= 9 (0
密度为1的螺线,x=cost,y=sint,z=2t(0
设x=t^2+cost,y=1-sint,求dy/dx