=根号【2sin²/(x/2)/(sin(x/2)+cos(x/2))²】然后再根据条件进行开方
高数复合求导1.y=e^2x+12.y=根号e^x+x^23.y=sin ln x4.y=cos(3x-5)+根号2x-15y=e^-x cos3x 扫码下载作业帮搜索答疑一搜即得 答案解析 查看更多优质解析 解答一 举报 1.y'=2e^2x2.y'=(e^2x+2x)/2根号(e^x+x^2)3.y'=coslnx/x4.y'=-3sin(3x-5)+1/根号(2x-1)5.y'=-e^...
√是根号我变下来是xcos⊙-√3sin⊙ 相关知识点: 试题来源: 解析 函数求导,是对X求导,并没有对⊙求导,如果你把⊙当作常数,那么求导时就不需对三角函数求导;如果你把⊙作为变数,但题目中没有明确X与⊙之间的关系. 假如⊙为常数:则 f(x)'=xsin⊙+√3cos⊙ 假如⊙为变数,就必须将⊙转化为X的形式进行...
x=2cosθ,y=sinθ 即方程是:x^2/4+y^2=1求导得:2x/4+y*y'=0即切线斜率是k=y'=-(x/2)/y=-x/(2y)又切线平行于y=x/2,所以k=1/2即:1/2=-x/(2y)即:y=-x代入方程得:x^2/4+x^2=1,x^2=4/5解得:x=2/5*根号5或- 2/5*根号...结果...
y= cos(arccos(1/√x) )y' = -sin(arccos(1/√x)) .(arccos(1/√x))'= -sin(arccos(1/√x)) . (-1/√(1-x^2) )(1/√x))'=-sin(arccos(1/√x)) . (-1/√(1-x^2) )(-(1/2)(x)^(-3/2)=-sin(arccos(1/√x)) /[2x^(3/2) . √(1-x^2) ]
y= cos(arccos(1/√x) )y' = -sin(arccos(1/√x)) .(arccos(1/√x))'= -sin(arccos(1/√x)) .(-1/√(1-x^2) )(1/√x))'=-sin(arccos(1/√x)) .(-1/√(1-x^2) )(-(1/2)(x)^(-3/2)=-sin(arccos(1/√x)) /[2x^(3/2) .√... 解析看不懂?免费查看同类题视频...
y=(x-1)/(x+1)=1 - 2/(x+1)y'=2/(x+1)^2y=(1-√x)(1+√x)=1-xy'=-1y=(x根号x/三次根号x)cosx=x^(7/6)*cosxy'=(7/6)x^(1/6)*cosx - x^(7/6)*sinxy=xsinx+√x = xsinx + x^(1/2)y'=sinx+x*cosx + 1/(2√x)y=Inx/x+1-... 解析看不懂?免费查看同类...
cos(arccos1除以根号x)求导 答案 y= cos(arccos(1/√x) )y' = -sin(arccos(1/√x)) .(arccos(1/√x))'= -sin(arccos(1/√x)) .(-1/√(1-x^2) )(1/√x))'=-sin(arccos(1/√x)) .(-1/√(1-x^2) )(-(1/2)(x)^(-3/2)=-sin(arccos(1/√x)) /[2x^(3/2) .√....
y=(x-1)/(x+1)=1 - 2/(x+1)y'=2/(x+1)^2y=(1-√x)(1+√x)=1-xy'=-1y=(x根号x/三次根号x)cosx=x^(7/6)*cosxy'=(7/6)x^(1/6)*cosx - x^(7/6)*sinxy=xsinx+√x = xsinx + x^(1/2)y'=sinx+x*cosx + 1/(2√x)y=Inx/x+1-... 结果...
导数求导!y=ln(1-x平方)y=cot 3/派y=根号(a平方-x平方) (a为常数)y=cos x+cos 2xy=(sin x/x)-(cos平方x/2x)y=(sin x平方)/(x+1)y=x平方/(根号(1-x平方))y=cos ((3x+1)/2)求下列函数在给定处的导数f(x)=ln tan x x=派/6f(x)=根号(1+ln平方x) x=e写了几题给几题啊。