求下列函数在给定区间上的最大值与最小值:
(1)f(x)=x5-5x4+5x3+1,x∈[-1,2];
(2)f(x)=sin2x-x,x∈[-π/2,π/2];
(3)f(x)=(x-1)/(x+1),x∈[0,4];
(4)f(x)=2tanx-tan2x,x∈[0,π/2];
(5)f(x)=√xlnx,x∈(0,+∞)。
(1)设f(x,y)=x+(y-1)arcsin,求fx(x,1);
(2)设f(x,y)=,求fy.
求下列函数的导数:
(1)y=(2+5x)20;
(2)y=asin(ωx+b);
(3)y=cos2x;
(4)y=3tanx;
(5)y=lnlnx;
(6)y=cosx2;
(7)y=arcsin(1/x);
(8)y=loga(x2+x+1);
(9)y=cos34x;
(10)y=(sinx2)3;
(11)y=sin√(1+e-x);
(12)y=arcsin(sin2x);
(13)y=e-xsec4x;
(14)y=arccos√x;
(15)y=arccot;
(16)y=。