y=(1+√x)^(-1)-(1-√x)^(-1)y'=-(1+√x)^(-2)*(1+√x)'-[-(1-√x)^(-2)*(1-√x)']=-1/(1+√x)^2*(1/2√x)+1/(1-√x)^2*(-1/2√x)=-(1/2√x)[1/(1+2√x+x)+1/(1-2√x+x)]=-(1/2√x)[(2+2x)/(1-x)^2]=-(1+x)/[√x(1-x...